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sh: Apply locale vars on builtins, recognize LC_MESSAGES as a locale var.
This allows doing things like LC_ALL=C some_builtin to run a builtin under a different locale, just like is possible with external programs. The immediate reason is that this allows making printf(1) a builtin without breaking things like LC_NUMERIC=C printf '%f\n' 1.2 This change also affects special builtins, as even though the assignment is persistent, the export is only to the builtin (unless the variable was already exported). Note: for this to work for builtins that also exist as external programs such as /bin/test, the setlocale() call must be under #ifndef SHELL. The shell will do the setlocale() calls which may not agree with the environment variables.
This commit is contained in:
Jilles Tjoelker
parent
d18129ea1d
commit
e4b50334ec
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=207678
@ -937,6 +937,8 @@ evalcommand(union node *cmd, int flags, struct backcmd *backcmd)
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cmdentry.special = 1;
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if (cmdentry.special)
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listsetvar(cmdenviron);
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if (argc > 0)
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bltinsetlocale();
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commandname = argv[0];
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argptr = argv + 1;
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nextopt_optptr = NULL; /* initialize nextopt */
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@ -944,6 +946,8 @@ evalcommand(union node *cmd, int flags, struct backcmd *backcmd)
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exitstatus = (*builtinfunc[cmdentry.u.index])(argc, argv);
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flushall();
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cmddone:
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if (argc > 0)
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bltinunsetlocale();
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cmdenviron = NULL;
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out1 = &output;
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out2 = &errout;
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75
bin/sh/var.c
75
bin/sh/var.c
@ -122,6 +122,14 @@ STATIC const struct varinit varinit[] = {
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STATIC struct var *vartab[VTABSIZE];
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STATIC const char *const locale_names[7] = {
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"LC_COLLATE", "LC_CTYPE", "LC_MONETARY",
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"LC_NUMERIC", "LC_TIME", "LC_MESSAGES", NULL
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};
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STATIC const int locale_categories[7] = {
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LC_COLLATE, LC_CTYPE, LC_MONETARY, LC_NUMERIC, LC_TIME, LC_MESSAGES, 0
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};
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STATIC struct var **hashvar(const char *);
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STATIC int varequal(const char *, const char *);
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STATIC int localevar(const char *);
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@ -258,11 +266,7 @@ setvar(const char *name, const char *val, int flags)
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STATIC int
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localevar(const char *s)
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{
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static const char *lnames[7] = {
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"ALL", "COLLATE", "CTYPE", "MONETARY",
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"NUMERIC", "TIME", NULL
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};
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const char **ss;
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const char *const *ss;
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if (*s != 'L')
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return 0;
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@ -270,8 +274,10 @@ localevar(const char *s)
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return 1;
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if (strncmp(s + 1, "C_", 2) != 0)
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return 0;
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for (ss = lnames; *ss ; ss++)
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if (varequal(s + 3, *ss))
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if (varequal(s + 3, "ALL"))
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return 1;
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for (ss = locale_names; *ss ; ss++)
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if (varequal(s + 3, *ss + 3))
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return 1;
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return 0;
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}
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@ -437,6 +443,61 @@ bltinlookup(const char *name, int doall)
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}
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/*
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* Set up locale for a builtin (LANG/LC_* assignments).
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*/
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void
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bltinsetlocale(void)
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{
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struct strlist *lp;
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int act = 0;
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char *loc, *locdef;
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int i;
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for (lp = cmdenviron ; lp ; lp = lp->next) {
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if (localevar(lp->text)) {
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act = 1;
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break;
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}
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}
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if (!act)
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return;
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loc = bltinlookup("LC_ALL", 0);
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INTOFF;
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if (loc != NULL) {
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setlocale(LC_ALL, loc);
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INTON;
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return;
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}
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locdef = bltinlookup("LANG", 0);
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for (i = 0; locale_names[i] != NULL; i++) {
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loc = bltinlookup(locale_names[i], 0);
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if (loc == NULL)
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loc = locdef;
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if (loc != NULL)
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setlocale(locale_categories[i], loc);
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}
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INTON;
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}
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/*
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* Undo the effect of bltinlocaleset().
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*/
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void
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bltinunsetlocale(void)
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{
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struct strlist *lp;
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INTOFF;
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for (lp = cmdenviron ; lp ; lp = lp->next) {
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if (localevar(lp->text)) {
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setlocale(LC_ALL, "");
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return;
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}
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}
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INTON;
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}
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/*
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* Generate a list of exported variables. This routine is used to construct
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@ -107,6 +107,8 @@ struct strlist;
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void listsetvar(struct strlist *);
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char *lookupvar(const char *);
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char *bltinlookup(const char *, int);
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void bltinsetlocale(void);
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void bltinunsetlocale(void);
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char **environment(void);
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int showvarscmd(int, char **);
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int exportcmd(int, char **);
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133
tools/regression/bin/sh/builtins/locale1.0
Normal file
133
tools/regression/bin/sh/builtins/locale1.0
Normal file
@ -0,0 +1,133 @@
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# $FreeBSD$
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# Note: this test depends on strerror() using locale.
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failures=0
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check() {
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if ! eval "[ $1 ]"; then
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echo "Failed: $1 at $2"
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: $((failures += 1))
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fi
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}
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unset LANG LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY LC_NUMERIC LC_TIME LC_MESSAGES
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msgeng="No such file or directory"
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msgdut="Bestand of map niet gevonden"
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# Verify C locale error message.
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case $(command . /var/empty/foo 2>&1) in
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*"$msgeng"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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# Various locale variables that should not affect the message.
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case $(LC_ALL=C command . /var/empty/foo 2>&1) in
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*"$msgeng"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(LC_ALL=C LANG=nl_NL.ISO8859-1 command . /var/empty/foo 2>&1) in
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*"$msgeng"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(LC_ALL=C LC_MESSAGES=nl_NL.ISO8859-1 command . /var/empty/foo 2>&1) in
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*"$msgeng"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(LC_CTYPE=nl_NL.ISO8859-1 command . /var/empty/foo 2>&1) in
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*"$msgeng"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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# Verify Dutch message.
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case $(export LANG=nl_NL.ISO8859-1; command . /var/empty/foo 2>&1) in
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*"$msgdut"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(export LC_MESSAGES=nl_NL.ISO8859-1; command . /var/empty/foo 2>&1) in
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*"$msgdut"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(export LC_ALL=nl_NL.ISO8859-1; command . /var/empty/foo 2>&1) in
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*"$msgdut"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(LANG=nl_NL.ISO8859-1 command . /var/empty/foo 2>&1) in
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*"$msgdut"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(LC_MESSAGES=nl_NL.ISO8859-1 command . /var/empty/foo 2>&1) in
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*"$msgdut"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(LC_ALL=nl_NL.ISO8859-1 command . /var/empty/foo 2>&1) in
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*"$msgdut"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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# Verify that command assignments do not set the locale persistently.
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case $(command . /var/empty/foo 2>&1) in
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*"$msgeng"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(LANG=nl_NL.ISO8859-1 command . /var/empty/foo 2>&1; command . /var/empty/foo 2>&1) in
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*"$msgdut"*"$msgeng"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(LC_MESSAGES=nl_NL.ISO8859-1 command . /var/empty/foo 2>&1; command . /var/empty/foo 2>&1) in
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*"$msgdut"*"$msgeng"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(LC_ALL=nl_NL.ISO8859-1 command . /var/empty/foo 2>&1; command . /var/empty/foo 2>&1) in
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*"$msgdut"*"$msgeng"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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# Check special builtin; add colon invocation to avoid depending on certain fix.
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case $(LC_ALL=nl_NL.ISO8859-1 . /var/empty/foo 2>&1; :) in
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*"$msgdut"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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# Assignments on special builtins are exported to that builtin; the export
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# is not persistent.
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case $(LC_ALL=nl_NL.ISO8859-1 . /dev/null; . /var/empty/foo 2>&1) in
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*"$msgeng"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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case $(export LC_ALL; LC_ALL=nl_NL.ISO8859-1 . /dev/null; . /var/empty/foo 2>&1) in
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*"$msgdut"*) ok=1 ;;
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*) ok=0 ;;
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esac
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check '$ok -eq 1' $LINENO
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exit $((failures > 0))
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