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d4035a267d
names longer than one char. (compilation-parse-errors): Error if compilation-error-regexp-alist is nil.
1017 lines
38 KiB
EmacsLisp
1017 lines
38 KiB
EmacsLisp
;;; compile.el --- run compiler as inferior of Emacs, parse error messages.
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;; Copyright (C) 1985, 86, 87, 93 Free Software Foundation, Inc.
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;; Author: Roland McGrath <roland@prep.ai.mit.edu>
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;; Maintainer: FSF
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;; Keywords: tools, processes
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to
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;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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;;; Commentary:
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;; This package provides the compile and grep facilities documented in
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;; the Emacs user's manual.
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;;; Code:
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;;;###autoload
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(defvar compilation-mode-hook nil
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"*List of hook functions run by compilation-mode (see `run-hooks').")
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;;;###autoload
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(defconst compilation-window-height nil
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"*Number of lines in a compilation window. If nil, use Emacs default.")
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(defvar compilation-error-list nil
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"List of error message descriptors for visiting erring functions.
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Each error descriptor is a cons (or nil). Its car is a marker pointing to
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an error message. If its cdr is a marker, it points to the text of the
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line the message is about. If its cdr is a cons, that cons's car is a cons
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\(DIRECTORY . FILE\), specifying the file the message is about, and its cdr
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is the number of the line the message is about. Or its cdr may be nil if
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that error is not interesting.
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The value may be t instead of a list; this means that the buffer of
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error messages should be reparsed the next time the list of errors is wanted.")
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(defvar compilation-old-error-list nil
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"Value of `compilation-error-list' after errors were parsed.")
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(defvar compilation-parse-errors-function 'compilation-parse-errors
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"Function to call to parse error messages from a compilation.
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It takes args LIMIT-SEARCH and FIND-AT-LEAST.
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If LIMIT-SEARCH is non-nil, don't bother parsing past that location.
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If FIND-AT-LEAST is non-nil, don't bother parsing after finding that
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many new erros.
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It should read in the source files which have errors and set
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`compilation-error-list' to a list with an element for each error message
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found. See that variable for more info.")
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;;;###autoload
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(defvar compilation-buffer-name-function nil
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"Function to compute the name of a compilation buffer.
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The function receives one argument, the name of the major mode of the
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compilation buffer. It should return a string.
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nil means compute the name with `(concat \"*\" (downcase major-mode) \"*\")'.")
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;;;###autoload
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(defvar compilation-finish-function nil
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"*Function to call when a compilation process finishes.
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It is called with two arguments: the compilation buffer, and a string
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describing how the process finished.")
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(defvar compilation-last-buffer nil
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"The most recent compilation buffer.
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A buffer becomes most recent when its compilation is started
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or when it is used with \\[next-error] or \\[compile-goto-error].")
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(defvar compilation-in-progress nil
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"List of compilation processes now running.")
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(or (assq 'compilation-in-progress minor-mode-alist)
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(setq minor-mode-alist (cons '(compilation-in-progress " Compiling")
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minor-mode-alist)))
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(defvar compilation-parsing-end nil
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"Position of end of buffer when last error messages were parsed.")
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(defvar compilation-error-message "No more errors"
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"Message to print when no more matches are found.")
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(defvar compilation-num-errors-found)
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(defvar compilation-error-regexp-alist
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'(
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;; NOTE! This first one is repeated in grep-regexp-alist, below.
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;; 4.3BSD grep, cc, lint pass 1:
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;; /usr/src/foo/foo.c(8): warning: w may be used before set
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;; or GNU utilities:
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;; foo.c:8: error message
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;; or HP-UX 7.0 fc:
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;; foo.f :16 some horrible error message
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;;
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;; We'll insist that the number be followed by a colon or closing
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;; paren, because otherwise this matches just about anything
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;; containing a number with spaces around it.
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("^\\([^:( \t\n]+\\)[:( \t]+\\([0-9]+\\)[:) \t]" 1 2)
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;; 4.3BSD lint pass 2
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;; strcmp: variable # of args. llib-lc(359) :: /usr/src/foo/foo.c(8)
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("[ \t:]+\\([^:( \t\n]+\\)[ \t]*[:(]*(+[ \t]*\\([0-9]+\\))[:) \t]*$" 1 2)
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;; 4.3BSD lint pass 3
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;; bloofle defined( /users/wolfgang/foo.c(4) ), but never used
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;; This used to be
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;; ("[ \t(]+\\([^:( \t\n]+\\)[:( \t]+\\([0-9]+\\)[:) \t]+" 1 2)
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;; which is regexp Impressionism - it matches almost anything!
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("([ \t]*\\([^:( \t\n]+\\)[ \t]*[:(][ \t]*\\([0-9]+\\))" 1 2)
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;; Line 45 of "foo.c": bloofel undefined (who does this?)
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("^[Ll]ine[ \t]+\\([0-9]+\\)[ \t]+of[ \t]+\"\\([^\"\n]+\\)\":" 2 1)
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;; Apollo cc, 4.3BSD fc:
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;; "foo.f", line 3: Error: syntax error near end of statement
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;; or MIPS RISC CC - the one distributed with Ultrix:
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;; ccom: Error: foo.c, line 2: syntax error
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("\\b\"?\\([^,\" \n\t]+\\)\"?, line \\([0-9]+\\):" 1 2)
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;; IBM AIX PS/2 C version 1.1:
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;; ****** Error number 140 in line 8 of file errors.c ******
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("in line \\([0-9]+\\) of file \\([^ \n]+[^. \n]\\)\\.? " 2 1)
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;; IBM AIX lint is too painful to do right this way. File name
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;; prefixes entire sections rather than being on each line.
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)
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"Alist that specifies how to match errors in compiler output.
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Each element has the form (REGEXP FILE-IDX LINE-IDX).
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If REGEXP matches, the FILE-IDX'th subexpression gives the file
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name, and the LINE-IDX'th subexpression gives the line number.")
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(defvar grep-regexp-alist
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'(("^\\([^:( \t\n]+\\)[:( \t]+\\([0-9]+\\)[:) \t]" 1 2))
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"Regexp used to match grep hits. See `compilation-error-regexp-alist'.")
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;;;###autoload
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(defvar compilation-search-path '(nil)
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"*List of directories to search for source files named in error messages.
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Elements should be directory names, not file names of directories.
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nil as an element means to try the default directory.")
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(defvar compile-command "make -k "
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"Last shell command used to do a compilation; default for next compilation.
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Sometimes it is useful for files to supply local values for this variable.
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You might also use mode hooks to specify it in certain modes, like this:
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(setq c-mode-hook
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'(lambda () (or (file-exists-p \"makefile\") (file-exists-p \"Makefile\")
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(progn (make-local-variable 'compile-command)
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(setq compile-command
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(concat \"make -k \"
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buffer-file-name))))))")
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(defconst compilation-enter-directory-regexp
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": Entering directory `\\(.*\\)'$"
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"Regular expression matching lines that indicate a new current directory.
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This must contain one \\(, \\) pair around the directory name.
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The default value matches lines printed by the `-w' option of GNU Make.")
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(defconst compilation-leave-directory-regexp
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": Leaving directory `\\(.*\\)'$"
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"Regular expression matching lines that indicate restoring current directory.
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This may contain one \\(, \\) pair around the name of the directory
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being moved from. If it does not, the last directory entered \(by a
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line matching `compilation-enter-directory-regexp'\) is assumed.
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The default value matches lines printed by the `-w' option of GNU Make.")
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(defvar compilation-directory-stack nil
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"Stack of previous directories for `compilation-leave-directory-regexp'.
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The head element is the directory the compilation was started in.")
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;; History of compile commands.
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(defvar compile-history nil)
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;; History of grep commands.
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(defvar grep-history nil)
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;;;###autoload
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(defun compile (command)
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"Compile the program including the current buffer. Default: run `make'.
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Runs COMMAND, a shell command, in a separate process asynchronously
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with output going to the buffer `*compilation*'.
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You can then use the command \\[next-error] to find the next error message
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and move to the source code that caused it.
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To run more than one compilation at once, start one and rename the
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\`*compilation*' buffer to some other name with \\[rename-buffer].
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Then start the next one.
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The name used for the buffer is actually whatever is returned by
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the function in `compilation-buffer-name-function', so you can set that
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to a function that generates a unique name."
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(interactive (list (read-from-minibuffer "Compile command: "
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compile-command nil nil
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'(compile-history . 1))))
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(setq compile-command command)
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(save-some-buffers nil nil)
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(compile-internal compile-command "No more errors"))
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;;;###autoload
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(defun grep (command-args)
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"Run grep, with user-specified args, and collect output in a buffer.
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While grep runs asynchronously, you can use the \\[next-error] command
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to find the text that grep hits refer to.
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This command uses a special history list for its arguments, so you can
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easily repeat a grep command."
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(interactive
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(list (read-from-minibuffer "Run grep (like this): "
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"grep -n " nil nil 'grep-history)))
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(compile-internal (concat command-args " /dev/null")
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"No more grep hits" "grep"
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;; Give it a simpler regexp to match.
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nil grep-regexp-alist))
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(defun compile-internal (command error-message
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&optional name-of-mode parser regexp-alist
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name-function)
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"Run compilation command COMMAND (low level interface).
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ERROR-MESSAGE is a string to print if the user asks to see another error
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and there are no more errors. Third argument NAME-OF-MODE is the name
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to display as the major mode in the compilation buffer.
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Fourth arg PARSER is the error parser function (nil means the default). Fifth
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arg REGEXP-ALIST is the error message regexp alist to use (nil means the
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default). Sixth arg NAME-FUNCTION is a function called to name the buffer (nil
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means the default). The defaults for these variables are the global values of
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\`compilation-parse-errors-function', `compilation-error-regexp-alist', and
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\`compilation-buffer-name-function', respectively.
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Returns the compilation buffer created."
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(let (outbuf)
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(save-excursion
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(or name-of-mode
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(setq name-of-mode "Compilation"))
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(setq outbuf
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(get-buffer-create
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(funcall (or name-function compilation-buffer-name-function
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(function (lambda (mode)
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(concat "*" (downcase mode) "*"))))
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name-of-mode)))
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(set-buffer outbuf)
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(let ((comp-proc (get-buffer-process (current-buffer))))
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(if comp-proc
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(if (or (not (eq (process-status comp-proc) 'run))
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(yes-or-no-p
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(format "A %s process is running; kill it? "
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name-of-mode)))
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(condition-case ()
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(progn
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(interrupt-process comp-proc)
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(sit-for 1)
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(delete-process comp-proc))
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(error nil))
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(error "Cannot have two processes in `%s' at once"
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(buffer-name))
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)))
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;; In case the compilation buffer is current, make sure we get the global
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;; values of compilation-error-regexp-alist, etc.
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(kill-all-local-variables))
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(let ((regexp-alist (or regexp-alist compilation-error-regexp-alist))
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(parser (or parser compilation-parse-errors-function))
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(thisdir default-directory)
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outwin)
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(save-excursion
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;; Clear out the compilation buffer and make it writable.
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;; Change its default-directory to the directory where the compilation
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;; will happen, and insert a `cd' command to indicate this.
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(set-buffer outbuf)
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(setq buffer-read-only nil)
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(erase-buffer)
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(setq default-directory thisdir)
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(insert "cd " thisdir "\n" command "\n")
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(set-buffer-modified-p nil))
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;; If we're already in the compilation buffer, go to the end
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;; of the buffer, so point will track the compilation output.
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(if (eq outbuf (current-buffer))
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(goto-char (point-max)))
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;; Pop up the compilation buffer.
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(setq outwin (display-buffer outbuf))
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(set-buffer outbuf)
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(compilation-mode)
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(buffer-disable-undo (current-buffer))
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(setq buffer-read-only t)
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(set (make-local-variable 'compilation-parse-errors-function) parser)
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(set (make-local-variable 'compilation-error-message) error-message)
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(set (make-local-variable 'compilation-error-regexp-alist) regexp-alist)
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(setq default-directory thisdir
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compilation-directory-stack (list default-directory))
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(set-window-start outwin (point-min))
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(setq mode-name name-of-mode)
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(or (eq outwin (selected-window))
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(set-window-point outwin (point-min)))
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(and compilation-window-height
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(= (window-width outwin) (frame-width))
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(let ((w (selected-window)))
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(unwind-protect
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(progn
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(select-window outwin)
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(enlarge-window (- compilation-window-height
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(window-height))))
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(select-window w))))
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;; Start the compilation.
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(let ((proc (start-process-shell-command (downcase mode-name)
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outbuf
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command)))
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(set-process-sentinel proc 'compilation-sentinel)
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(setq compilation-in-progress (cons proc compilation-in-progress))))
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;; Make it so the next C-x ` will use this buffer.
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(setq compilation-last-buffer outbuf)))
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(defvar compilation-mode-map
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(let ((map (make-sparse-keymap)))
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(define-key map "\C-c\C-c" 'compile-goto-error)
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(define-key map "\C-c\C-k" 'kill-compilation)
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(define-key map " " 'scroll-up)
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(define-key map "\^?" 'scroll-down)
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(define-key map "\M-n" 'compilation-next-error)
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(define-key map "\M-p" 'compilation-previous-error)
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(define-key map "\M-{" 'compilation-previous-file)
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(define-key map "\M-}" 'compilation-next-file)
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map)
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"Keymap for compilation log buffers.")
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(defun compilation-mode ()
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"Major mode for compilation log buffers.
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\\<compilation-mode-map>To visit the source for a line-numbered error,
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move point to the error message line and type \\[compile-goto-error].
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To kill the compilation, type \\[kill-compilation].
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Runs `compilation-mode-hook' with `run-hooks' (which see)."
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(interactive)
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(fundamental-mode)
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(use-local-map compilation-mode-map)
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(setq major-mode 'compilation-mode)
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(setq mode-name "Compilation")
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;; Make buffer's mode line show process state
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(setq mode-line-process '(": %s"))
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(set (make-local-variable 'compilation-error-list) nil)
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(set (make-local-variable 'compilation-old-error-list) nil)
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(set (make-local-variable 'compilation-parsing-end) 1)
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(set (make-local-variable 'compilation-directory-stack) nil)
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(setq compilation-last-buffer (current-buffer))
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(run-hooks 'compilation-mode-hook))
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;; Called when compilation process changes state.
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(defun compilation-sentinel (proc msg)
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"Sentinel for compilation buffers."
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(let ((buffer (process-buffer proc)))
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(if (memq (process-status proc) '(signal exit))
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(progn
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(if (null (buffer-name buffer))
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;; buffer killed
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(set-process-buffer proc nil)
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(let ((obuf (current-buffer))
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omax opoint)
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;; save-excursion isn't the right thing if
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;; process-buffer is current-buffer
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(unwind-protect
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(progn
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;; Write something in the compilation buffer
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;; and hack its mode line.
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(set-buffer buffer)
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(let ((buffer-read-only nil))
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(setq omax (point-max)
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opoint (point))
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(goto-char omax)
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;; Record where we put the message, so we can ignore it
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;; later on.
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(insert ?\n mode-name " " msg)
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(forward-char -1)
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(insert " at " (substring (current-time-string) 0 19))
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(forward-char 1)
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(setq mode-line-process
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(concat ": "
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(symbol-name (process-status proc))))
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;; Since the buffer and mode line will show that the
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;; process is dead, we can delete it now. Otherwise it
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;; will stay around until M-x list-processes.
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(delete-process proc)
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;; Force mode line redisplay soon.
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(set-buffer-modified-p (buffer-modified-p)))
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(if (and opoint (< opoint omax))
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(goto-char opoint))
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(if compilation-finish-function
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(funcall compilation-finish-function buffer msg)))
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(set-buffer obuf))))
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(setq compilation-in-progress (delq proc compilation-in-progress))
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))))
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;; Return the cdr of compilation-old-error-list for the error containing point.
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(defun compile-error-at-point ()
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(compile-reinitialize-errors nil (point))
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(let ((errors compilation-old-error-list))
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(while (and errors
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(> (point) (car (car errors))))
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(setq errors (cdr errors)))
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errors))
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(defun compilation-next-error (n)
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"Move point to the next error in the compilation buffer.
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Does NOT find the source line like \\[next-error]."
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(interactive "p")
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(or (compilation-buffer-p (current-buffer))
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(error "Not in a compilation buffer."))
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(setq compilation-last-buffer (current-buffer))
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(let ((errors (compile-error-at-point)))
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;; Move to the error after the one containing point.
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(goto-char (car (if (< n 0)
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(let ((i 0)
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(e compilation-old-error-list))
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;; See how many cdrs away ERRORS is from the start.
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(while (not (eq e errors))
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(setq i (1+ i)
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e (cdr e)))
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(if (> (- n) i)
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(error "Moved back past first error")
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(nth (+ i n) compilation-old-error-list)))
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(let ((compilation-error-list (cdr errors)))
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(compile-reinitialize-errors nil nil n)
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(if compilation-error-list
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(nth (1- n) compilation-error-list)
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(error "Moved past last error"))))))))
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(defun compilation-previous-error (n)
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"Move point to the previous error in the compilation buffer.
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Does NOT find the source line like \\[next-error]."
|
|
(interactive "p")
|
|
(compilation-next-error (- n)))
|
|
|
|
|
|
(defun compile-file-of-error (data)
|
|
(setq data (cdr data))
|
|
(if (markerp data)
|
|
(buffer-file-name (marker-buffer data))
|
|
(setq data (car data))
|
|
(expand-file-name (cdr data) (car data))))
|
|
|
|
(defun compilation-next-file (n)
|
|
"Move point to the next error for a different file than the current one."
|
|
(interactive "p")
|
|
(or (compilation-buffer-p (current-buffer))
|
|
(error "Not in a compilation buffer."))
|
|
(setq compilation-last-buffer (current-buffer))
|
|
|
|
(let ((reversed (< n 0))
|
|
errors file)
|
|
|
|
(if (not reversed)
|
|
(setq errors (or (compile-error-at-point)
|
|
(error "Moved past last error")))
|
|
|
|
;; Get a reversed list of the errors up through the one containing point.
|
|
(compile-reinitialize-errors nil (point))
|
|
(setq errors (reverse compilation-old-error-list)
|
|
n (- n))
|
|
|
|
;; Ignore errors after point. (car ERRORS) will be the error
|
|
;; containing point, (cadr ERRORS) the one before it.
|
|
(while (and errors
|
|
(< (point) (car (car errors))))
|
|
(setq errors (cdr errors))))
|
|
|
|
(while (> n 0)
|
|
(setq file (compile-file-of-error (car errors)))
|
|
|
|
;; Skip past the other errors for this file.
|
|
(while (string= file
|
|
(compile-file-of-error
|
|
(car (or errors
|
|
(if reversed
|
|
(error "%s the first erring file" file)
|
|
(let ((compilation-error-list nil))
|
|
;; Parse some more.
|
|
(compile-reinitialize-errors nil nil 2)
|
|
(setq errors compilation-error-list)))
|
|
(error "%s is the last erring file" file)))))
|
|
(setq errors (cdr errors)))
|
|
|
|
(setq n (1- n)))
|
|
|
|
;; Move to the following error.
|
|
(goto-char (car (car (or errors
|
|
(if reversed
|
|
(error "This is the first erring file")
|
|
(let ((compilation-error-list nil))
|
|
;; Parse the last one.
|
|
(compile-reinitialize-errors nil nil 1)
|
|
compilation-error-list))))))))
|
|
|
|
(defun compilation-previous-file (n)
|
|
"Move point to the previous error for a different file than the current one."
|
|
(interactive "p")
|
|
(compilation-next-file (- n)))
|
|
|
|
|
|
(defun kill-compilation ()
|
|
"Kill the process made by the \\[compile] command."
|
|
(interactive)
|
|
(let ((buffer (compilation-find-buffer)))
|
|
(if (get-buffer-process buffer)
|
|
(interrupt-process (get-buffer-process buffer))
|
|
(error "The compilation process is not running."))))
|
|
|
|
|
|
;; Parse any new errors in the compilation buffer,
|
|
;; or reparse from the beginning if the user has asked for that.
|
|
(defun compile-reinitialize-errors (argp &optional limit-search find-at-least)
|
|
(save-excursion
|
|
(set-buffer compilation-last-buffer)
|
|
;; If we are out of errors, or if user says "reparse",
|
|
;; discard the info we have, to force reparsing.
|
|
(if (or (eq compilation-error-list t)
|
|
(consp argp))
|
|
(progn (compilation-forget-errors)
|
|
(setq compilation-parsing-end 1)))
|
|
(if (and compilation-error-list
|
|
(or (not limit-search)
|
|
(> compilation-parsing-end limit-search))
|
|
(or (not find-at-least)
|
|
(> (length compilation-error-list) find-at-least)))
|
|
;; Since compilation-error-list is non-nil, it points to a specific
|
|
;; error the user wanted. So don't move it around.
|
|
nil
|
|
(switch-to-buffer compilation-last-buffer)
|
|
(set-buffer-modified-p nil)
|
|
(if (< compilation-parsing-end (point-max))
|
|
(let ((at-start (= compilation-parsing-end 1)))
|
|
(funcall compilation-parse-errors-function
|
|
limit-search find-at-least)
|
|
;; Remember the entire list for compilation-forget-errors.
|
|
;; If this is an incremental parse, append to previous list.
|
|
(if at-start
|
|
(setq compilation-old-error-list compilation-error-list)
|
|
(setq compilation-old-error-list
|
|
(nconc compilation-old-error-list compilation-error-list)))
|
|
)))))
|
|
|
|
(defun compile-goto-error (&optional argp)
|
|
"Visit the source for the error message point is on.
|
|
Use this command in a compilation log buffer.
|
|
\\[universal-argument] as a prefix arg means to reparse the buffer's error messages first;
|
|
other kinds of prefix arguments are ignored."
|
|
(interactive "P")
|
|
(or (compilation-buffer-p (current-buffer))
|
|
(error "Not in a compilation buffer."))
|
|
(setq compilation-last-buffer (current-buffer))
|
|
(compile-reinitialize-errors argp (point))
|
|
|
|
;; Move to bol; the marker for the error on this line will point there.
|
|
(beginning-of-line)
|
|
|
|
;; Move compilation-error-list to the elt of compilation-old-error-list
|
|
;; we want.
|
|
(setq compilation-error-list compilation-old-error-list)
|
|
(while (and compilation-error-list
|
|
(> (point) (car (car compilation-error-list))))
|
|
(setq compilation-error-list (cdr compilation-error-list)))
|
|
|
|
;; Move to another window, so that next-error's window changes
|
|
;; result in the desired setup.
|
|
(or (one-window-p)
|
|
(progn
|
|
(other-window -1)
|
|
;; other-window changed the selected buffer,
|
|
;; but we didn't want to do that.
|
|
(set-buffer compilation-last-buffer)))
|
|
|
|
(next-error 1))
|
|
|
|
(defun compilation-buffer-p (buffer)
|
|
(assq 'compilation-error-list (buffer-local-variables buffer)))
|
|
|
|
;; Return a compilation buffer.
|
|
;; If the current buffer is a compilation buffer, return it.
|
|
;; If compilation-last-buffer is set to a live buffer, use that.
|
|
;; Otherwise, look for a compilation buffer and signal an error
|
|
;; if there are none.
|
|
(defun compilation-find-buffer (&optional other-buffer)
|
|
(if (and (not other-buffer)
|
|
(compilation-buffer-p (current-buffer)))
|
|
;; The current buffer is a compilation buffer.
|
|
(current-buffer)
|
|
(if (and compilation-last-buffer (buffer-name compilation-last-buffer)
|
|
(or (not other-buffer) (not (eq compilation-last-buffer
|
|
(current-buffer)))))
|
|
compilation-last-buffer
|
|
(let ((buffers (buffer-list)))
|
|
(while (and buffers (or (not (compilation-buffer-p (car buffers)))
|
|
(and other-buffer
|
|
(eq (car buffers) (current-buffer)))))
|
|
(setq buffers (cdr buffers)))
|
|
(if buffers
|
|
(car buffers)
|
|
(or (and other-buffer
|
|
(compilation-buffer-p (current-buffer))
|
|
;; The current buffer is a compilation buffer.
|
|
(progn
|
|
(if other-buffer
|
|
(message "This is the only compilation buffer."))
|
|
(current-buffer)))
|
|
(error "No compilation started!")))))))
|
|
|
|
;;;###autoload
|
|
(defun next-error (&optional argp)
|
|
"Visit next compilation error message and corresponding source code.
|
|
This operates on the output from the \\[compile] command.
|
|
If all preparsed error messages have been processed,
|
|
the error message buffer is checked for new ones.
|
|
|
|
A prefix arg specifies how many error messages to move;
|
|
negative means move back to previous error messages.
|
|
Just C-u as a prefix means reparse the error message buffer
|
|
and start at the first error.
|
|
|
|
\\[next-error] normally applies to the most recent compilation started,
|
|
but as long as you are in the middle of parsing errors from one compilation
|
|
output buffer, you stay with that compilation output buffer.
|
|
|
|
Use \\[next-error] in a compilation output buffer to switch to
|
|
processing errors from that compilation.
|
|
|
|
See variables `compilation-parse-errors-function' and
|
|
\`compilation-error-regexp-alist' for customization ideas."
|
|
(interactive "P")
|
|
(setq compilation-last-buffer (compilation-find-buffer))
|
|
(compile-reinitialize-errors argp nil
|
|
;; We want to pass a number here only if
|
|
;; we got a numeric prefix arg, not just C-u.
|
|
(and (not (consp argp))
|
|
(1- (prefix-numeric-value argp))))
|
|
;; Make ARGP nil if the prefix arg was just C-u,
|
|
;; since that means to reparse the errors, which the
|
|
;; compile-reinitialize-errors call just did.
|
|
;; Now we are only interested in a numeric prefix arg.
|
|
(if (consp argp)
|
|
(setq argp nil))
|
|
(let (next-errors next-error)
|
|
(save-excursion
|
|
(set-buffer compilation-last-buffer)
|
|
;; compilation-error-list points to the "current" error.
|
|
(setq next-errors (nthcdr (1- (prefix-numeric-value argp))
|
|
compilation-error-list)
|
|
next-error (car next-errors))
|
|
(while
|
|
(progn
|
|
(if (null next-error)
|
|
(progn
|
|
(if argp (if (> (prefix-numeric-value argp) 0)
|
|
(error "Moved past last error")
|
|
(error "Moved back past first error")))
|
|
(compilation-forget-errors)
|
|
(error (concat compilation-error-message
|
|
(and (get-buffer-process (current-buffer))
|
|
(eq (process-status
|
|
(get-buffer-process
|
|
(current-buffer)))
|
|
'run)
|
|
" yet"))))
|
|
(setq compilation-error-list (cdr next-errors))
|
|
(if (null (cdr next-error))
|
|
;; This error is boring. Go to the next.
|
|
t
|
|
(or (markerp (cdr next-error))
|
|
;; This error has a filename/lineno pair.
|
|
;; Find the file and turn it into a marker.
|
|
(let* ((fileinfo (car (cdr next-error)))
|
|
(buffer (compilation-find-file (cdr fileinfo)
|
|
(car fileinfo)
|
|
(car next-error))))
|
|
(if (null buffer)
|
|
;; We can't find this error's file.
|
|
;; Remove all errors in the same file.
|
|
(progn
|
|
(setq next-errors compilation-old-error-list)
|
|
(while next-errors
|
|
(and (consp (cdr (car next-errors)))
|
|
(equal (car (cdr (car next-errors)))
|
|
fileinfo)
|
|
(progn
|
|
(set-marker (car (car next-errors)) nil)
|
|
(setcdr (car next-errors) nil)))
|
|
(setq next-errors (cdr next-errors)))
|
|
;; Look for the next error.
|
|
t)
|
|
;; We found the file. Get a marker for this error.
|
|
;; compilation-old-error-list is a buffer-local
|
|
;; variable, so we must be careful to extract its value
|
|
;; before switching to the source file buffer.
|
|
(let ((errors compilation-old-error-list)
|
|
(last-line (cdr (cdr next-error))))
|
|
(set-buffer buffer)
|
|
(save-excursion
|
|
(save-restriction
|
|
(widen)
|
|
(goto-line last-line)
|
|
(beginning-of-line)
|
|
(setcdr next-error (point-marker))
|
|
;; Make all the other error messages referring
|
|
;; to the same file have markers into the buffer.
|
|
(while errors
|
|
(and (consp (cdr (car errors)))
|
|
(equal (car (cdr (car errors))) fileinfo)
|
|
(let ((this (cdr (cdr (car errors))))
|
|
(lines (- (cdr (cdr (car errors)))
|
|
last-line)))
|
|
(if (eq selective-display t)
|
|
(if (< lines 0)
|
|
(re-search-backward "[\n\C-m]"
|
|
nil 'end
|
|
(- lines))
|
|
(re-search-forward "[\n\C-m]"
|
|
nil 'end
|
|
lines))
|
|
(forward-line lines))
|
|
(setq last-line this)
|
|
(setcdr (car errors) (point-marker))))
|
|
(setq errors (cdr errors)))))))))
|
|
;; If we didn't get a marker for this error,
|
|
;; go on to the next one.
|
|
(not (markerp (cdr next-error))))))
|
|
(setq next-errors compilation-error-list
|
|
next-error (car next-errors))))
|
|
|
|
;; Skip over multiple error messages for the same source location,
|
|
;; so the next C-x ` won't go to an error in the same place.
|
|
(while (and compilation-error-list
|
|
(equal (cdr (car compilation-error-list)) (cdr next-error)))
|
|
(setq compilation-error-list (cdr compilation-error-list)))
|
|
|
|
;; We now have a marker for the position of the error.
|
|
(switch-to-buffer (marker-buffer (cdr next-error)))
|
|
(goto-char (cdr next-error))
|
|
;; If narrowing got in the way of
|
|
;; going to the right place, widen.
|
|
(or (= (point) (marker-position (cdr next-error)))
|
|
(progn
|
|
(widen)
|
|
(goto-char (cdr next-error))))
|
|
|
|
;; Show compilation buffer in other window, scrolled to this error.
|
|
(let* ((pop-up-windows t)
|
|
(w (display-buffer (marker-buffer (car next-error)))))
|
|
(set-window-point w (car next-error))
|
|
(set-window-start w (car next-error)))))
|
|
|
|
;;;###autoload
|
|
(define-key ctl-x-map "`" 'next-error)
|
|
|
|
;; Find a buffer for file FILENAME.
|
|
;; Search the directories in compilation-search-path.
|
|
;; A nil in compilation-search-path means to try the
|
|
;; current directory, which is passed in DIR.
|
|
;; If FILENAME is not found at all, ask the user where to find it.
|
|
;; Pop up the buffer containing MARKER and scroll to MARKER if we ask the user.
|
|
(defun compilation-find-file (filename dir marker)
|
|
(let ((dirs compilation-search-path)
|
|
result name)
|
|
(while (and dirs (null result))
|
|
(setq name (expand-file-name filename (or (car dirs) dir))
|
|
result (and (file-exists-p name)
|
|
(find-file-noselect name))
|
|
dirs (cdr dirs)))
|
|
(or result
|
|
;; The file doesn't exist.
|
|
;; Ask the user where to find it.
|
|
;; If he hits C-g, then the next time he does
|
|
;; next-error, he'll skip past it.
|
|
(progn
|
|
(let* ((pop-up-windows t)
|
|
(w (display-buffer (marker-buffer marker))))
|
|
(set-window-point w marker)
|
|
(set-window-start w marker))
|
|
(setq name
|
|
(expand-file-name
|
|
(read-file-name
|
|
(format "Find this error in: (default %s) "
|
|
filename) dir filename t)))
|
|
(if (file-directory-p name)
|
|
(setq name (concat (file-name-as-directory name) filename)))
|
|
(if (file-exists-p name)
|
|
(find-file-noselect name))))))
|
|
|
|
;; Set compilation-error-list to nil, and unchain the markers that point to the
|
|
;; error messages and their text, so that they no longer slow down gap motion.
|
|
;; This would happen anyway at the next garbage collection, but it is better to
|
|
;; do it right away.
|
|
(defun compilation-forget-errors ()
|
|
(while compilation-old-error-list
|
|
(let ((next-error (car compilation-old-error-list)))
|
|
(set-marker (car next-error) nil)
|
|
(if (markerp (cdr next-error))
|
|
(set-marker (cdr next-error) nil)))
|
|
(setq compilation-old-error-list (cdr compilation-old-error-list)))
|
|
(setq compilation-error-list nil
|
|
compilation-directory-stack nil))
|
|
|
|
|
|
(defun count-regexp-groupings (regexp)
|
|
"Return the number of \\( ... \\) groupings in REGEXP (a string)."
|
|
(let ((groupings 0)
|
|
(len (length regexp))
|
|
(i 0)
|
|
c)
|
|
(while (< i len)
|
|
(setq c (aref regexp i)
|
|
i (1+ i))
|
|
(cond ((= c ?\[)
|
|
;; Find the end of this [...].
|
|
(while (and (< i len)
|
|
(not (= (aref regexp i) ?\])))
|
|
(setq i (1+ i))))
|
|
((= c ?\\)
|
|
(if (< i len)
|
|
(progn
|
|
(setq c (aref regexp i)
|
|
i (1+ i))
|
|
(if (= c ?\))
|
|
;; We found the end of a grouping,
|
|
;; so bump our counter.
|
|
(setq groupings (1+ groupings))))))))
|
|
groupings))
|
|
|
|
(defun compilation-parse-errors (limit-search find-at-least)
|
|
"Parse the current buffer as grep, cc or lint error messages.
|
|
See variable `compilation-parse-errors-function' for the interface it uses."
|
|
(setq compilation-error-list nil)
|
|
(message "Parsing error messages...")
|
|
(let (text-buffer
|
|
regexp enter-group leave-group error-group
|
|
alist subexpr error-regexp-groups
|
|
(found-desired nil)
|
|
(compilation-num-errors-found 0))
|
|
|
|
;; Don't reparse messages already seen at last parse.
|
|
(goto-char compilation-parsing-end)
|
|
;; Don't parse the first two lines as error messages.
|
|
;; This matters for grep.
|
|
(if (bobp)
|
|
(forward-line 2))
|
|
|
|
;; Compile all the regexps we want to search for into one.
|
|
(setq regexp (concat "\\(" compilation-enter-directory-regexp "\\)\\|"
|
|
"\\(" compilation-leave-directory-regexp "\\)\\|"
|
|
"\\(" (mapconcat (function
|
|
(lambda (elt)
|
|
(concat "\\(" (car elt) "\\)")))
|
|
compilation-error-regexp-alist
|
|
"\\|") "\\)"))
|
|
|
|
;; Find out how many \(...\) groupings are in each of the regexps, and set
|
|
;; *-GROUP to the grouping containing each constituent regexp (whose
|
|
;; subgroups will come immediately thereafter) of the big regexp we have
|
|
;; just constructed.
|
|
(setq enter-group 1
|
|
leave-group (+ enter-group
|
|
(count-regexp-groupings
|
|
compilation-enter-directory-regexp)
|
|
1)
|
|
error-group (+ leave-group
|
|
(count-regexp-groupings
|
|
compilation-leave-directory-regexp)
|
|
1))
|
|
|
|
;; Compile an alist (IDX FILE LINE), where IDX is the number of the
|
|
;; subexpression for an entire error-regexp, and FILE and LINE are the
|
|
;; numbers for the subexpressions giving the file name and line number.
|
|
(setq alist (or compilation-error-regexp-alist
|
|
(error "compilation-error-regexp-alist is empty!"))
|
|
subexpr (1+ error-group))
|
|
(while alist
|
|
(setq error-regexp-groups (cons (list subexpr
|
|
(+ subexpr (nth 1 (car alist)))
|
|
(+ subexpr (nth 2 (car alist))))
|
|
error-regexp-groups))
|
|
(setq subexpr (+ subexpr 1 (count-regexp-groupings (car (car alist)))))
|
|
(setq alist (cdr alist)))
|
|
|
|
(while (and (not found-desired)
|
|
;; We don't just pass LIMIT-SEARCH to re-search-forward
|
|
;; because we want to find matches containing LIMIT-SEARCH
|
|
;; but which extend past it.
|
|
(re-search-forward regexp nil t))
|
|
|
|
;; Figure out which constituent regexp matched.
|
|
(cond ((match-beginning enter-group)
|
|
;; The match was the enter-directory regexp.
|
|
(let ((dir
|
|
(file-name-as-directory
|
|
(expand-file-name
|
|
(buffer-substring (match-beginning (+ enter-group 1))
|
|
(match-end (+ enter-group 1)))))))
|
|
(setq compilation-directory-stack
|
|
(cons dir compilation-directory-stack))
|
|
(and (file-directory-p dir)
|
|
(setq default-directory dir))))
|
|
|
|
((match-beginning leave-group)
|
|
;; The match was the leave-directory regexp.
|
|
(let ((beg (match-beginning (+ leave-group 1)))
|
|
(stack compilation-directory-stack))
|
|
(if beg
|
|
(let ((dir
|
|
(file-name-as-directory
|
|
(expand-file-name
|
|
(buffer-substring beg
|
|
(match-end (+ leave-group
|
|
1)))))))
|
|
(while (and stack
|
|
(not (string-equal (car stack) dir)))
|
|
(setq stack (cdr stack)))))
|
|
(setq compilation-directory-stack (cdr stack))
|
|
(setq stack (car compilation-directory-stack))
|
|
(if stack
|
|
(setq default-directory stack))
|
|
))
|
|
|
|
((match-beginning error-group)
|
|
;; The match was the composite error regexp.
|
|
;; Find out which individual regexp matched.
|
|
(setq alist error-regexp-groups)
|
|
(while (and alist
|
|
(null (match-beginning (car (car alist)))))
|
|
(setq alist (cdr alist)))
|
|
(setq losing-data (match-data))
|
|
(if alist
|
|
(setq alist (car alist))
|
|
(error "compilation-parse-errors: impossible regexp match!"))
|
|
|
|
;; Extract the file name and line number from the error message.
|
|
(let ((beginning-of-match (match-beginning 0)) ;looking-at nukes
|
|
(filename
|
|
(cons default-directory
|
|
(buffer-substring (match-beginning (nth 1 alist))
|
|
(match-end (nth 1 alist)))))
|
|
(linenum (save-restriction
|
|
(narrow-to-region
|
|
(match-beginning (nth 2 alist))
|
|
(match-end (nth 2 alist)))
|
|
(goto-char (point-min))
|
|
(if (looking-at "[0-9]")
|
|
(read (current-buffer))))))
|
|
;; Locate the erring file and line.
|
|
;; Cons a new elt onto compilation-error-list,
|
|
;; giving a marker for the current compilation buffer
|
|
;; location, and the file and line number of the error.
|
|
(save-excursion
|
|
(beginning-of-line 1)
|
|
(setq compilation-error-list
|
|
(cons (cons (point-marker)
|
|
(cons filename linenum))
|
|
compilation-error-list)))
|
|
(setq compilation-num-errors-found
|
|
(1+ compilation-num-errors-found))
|
|
(and find-at-least (>= compilation-num-errors-found
|
|
find-at-least)
|
|
;; We have found as many new errors as the user wants.
|
|
;; We continue to parse until we have seen all
|
|
;; the consecutive errors in the same file,
|
|
;; so the error positions will be recorded as markers
|
|
;; in this buffer that might change.
|
|
(cdr compilation-error-list) ; Must check at least two.
|
|
(not (equal (car (cdr (nth 0 compilation-error-list)))
|
|
(car (cdr (nth 1 compilation-error-list)))))
|
|
(progn
|
|
;; Discard the error just parsed, so that the next
|
|
;; parsing run can get it and the following errors in
|
|
;; the same file all at once. If we didn't do this, we
|
|
;; would have the same problem we are trying to avoid
|
|
;; with the test above, just delayed until the next run!
|
|
(setq compilation-error-list
|
|
(cdr compilation-error-list))
|
|
(goto-char beginning-of-match)
|
|
(setq found-desired t)))
|
|
)
|
|
)
|
|
(t
|
|
(error "compilation-parse-errors: known groups didn't match!")))
|
|
|
|
(message "Parsing error messages...%d (%d%% of buffer)"
|
|
compilation-num-errors-found
|
|
(/ (* 100 (point)) (point-max)))
|
|
|
|
(and limit-search (>= (point) limit-search)
|
|
;; The user wanted a specific error, and we're past it.
|
|
(setq found-desired t)))
|
|
(setq compilation-parsing-end (if found-desired
|
|
(point)
|
|
;; We have searched the whole buffer.
|
|
(point-max))))
|
|
(setq compilation-error-list (nreverse compilation-error-list))
|
|
(message "Parsing error messages...done"))
|
|
|
|
(define-key ctl-x-map "`" 'next-error)
|
|
|
|
(provide 'compile)
|
|
|
|
;;; compile.el ends here
|