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Compare src block parameters.

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This commit is contained in:
Tom Alexander
2023-10-04 18:02:50 -04:00
parent 1ab7d2f2d7
commit f046b16c11
3 changed files with 83 additions and 21 deletions
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81
src/parser/lesser_block.rs
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@@ -9,6 +9,7 @@ use nom::character::complete::space1;
use nom::combinator::consumed;
use nom::combinator::eof;
use nom::combinator::map;
use nom::combinator::not;
use nom::combinator::opt;
use nom::combinator::peek;
use nom::combinator::recognize;
@@ -24,6 +25,7 @@ use crate::context::ContextElement;
use crate::context::ContextMatcher;
use crate::context::ExitClass;
use crate::context::ExitMatcherNode;
use crate::context::Matcher;
use crate::context::RefContext;
use crate::error::Res;
use crate::parser::object_parser::standard_set_object;
@@ -238,7 +240,10 @@ pub(crate) fn src_block<'b, 'g, 'r, 's>(
) -> Res<OrgSource<'s>, SrcBlock<'s>> {
let (remaining, _name) = lesser_block_begin("src")(context, input)?;
// https://orgmode.org/worg/org-syntax.html#Blocks claims that data is mandatory and must follow the LANGUAGE SWITCHES ARGUMENTS pattern but testing has shown that no data and incorrect data here will still parse to a src block.
let (remaining, parameters) = opt(tuple((space1, src_switches)))(remaining)?;
let (remaining, switches) = opt(tuple((space1, src_switches)))(remaining)?;
let (remaining, parameters) = opt(map(tuple((space0, src_parameters)), |(_, parameters)| {
parameters
}))(remaining)?;
let (remaining, _nl) = recognize(tuple((space0, line_ending)))(remaining)?;
let lesser_block_end_specialized = lesser_block_end("src");
let contexts = [
@@ -252,8 +257,8 @@ pub(crate) fn src_block<'b, 'g, 'r, 's>(
let parser_context = context.with_additional_node(&contexts[0]);
let parser_context = parser_context.with_additional_node(&contexts[1]);
let parser_context = parser_context.with_additional_node(&contexts[2]);
let parameters = match parameters {
Some((_ws, parameters)) => Some(parameters),
let switches = match switches {
Some((_ws, switches)) => Some(switches),
None => None,
};
@@ -262,18 +267,18 @@ pub(crate) fn src_block<'b, 'g, 'r, 's>(
let source = get_consumed(input, remaining);
let (switches, language, number_lines, retain_labels, use_labels, label_format) = {
if let Some(parameters) = parameters {
if let Some(switches) = switches {
(
if parameters.source.len() == 0 {
if switches.source.len() == 0 {
None
} else {
Some(parameters.source)
Some(switches.source)
},
parameters.language,
parameters.number_lines,
parameters.retain_labels,
parameters.use_labels,
parameters.label_format,
switches.language,
switches.number_lines,
switches.retain_labels,
switches.use_labels,
switches.label_format,
)
} else {
(None, None, None, RetainLabels::Yes, true, None)
@@ -283,8 +288,9 @@ pub(crate) fn src_block<'b, 'g, 'r, 's>(
remaining,
SrcBlock {
source: source.into(),
switches,
language,
switches,
parameters: parameters.map(Into::<&str>::into),
number_lines,
retain_labels,
use_labels,
@@ -371,28 +377,35 @@ enum SwitchState {
LabelFormat,
}
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
fn src_parameters<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
recognize(is_not("\r\n"))(input)
}
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
fn src_switches<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, ExampleSrcSwitches<'s>> {
example_src_switches(true)(input)
example_src_switches(true, true)(input)
}
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
fn example_switches<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, ExampleSrcSwitches<'s>> {
let (remaining, switches) = example_src_switches(false)(input)?;
let (remaining, switches) = example_src_switches(false, false)(input)?;
debug_assert!(switches.language.is_none());
Ok((remaining, switches))
}
fn example_src_switches(
grab_language: bool,
stop_at_parameters: bool,
) -> impl for<'s> Fn(OrgSource<'s>) -> Res<OrgSource<'s>, ExampleSrcSwitches<'s>> {
move |input| _example_src_switches(input, grab_language)
move |input| _example_src_switches(input, grab_language, stop_at_parameters)
}
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
fn _example_src_switches<'s>(
input: OrgSource<'s>,
grab_language: bool,
stop_at_parameters: bool,
) -> Res<OrgSource<'s>, ExampleSrcSwitches<'s>> {
let mut number_lines = None;
let mut retain_labels = RetainLabels::Yes;
@@ -402,17 +415,23 @@ fn _example_src_switches<'s>(
let mut language = None;
let remaining = if grab_language {
let (remain, first_word) = opt(map(tuple((switch_word, space0)), |(word, _)| word))(input)?;
let (remain, first_word) = opt(switch_word(stop_at_parameters))(input)?;
language = first_word.map(Into::<&str>::into);
remain
} else {
input
};
let (remaining, (source, (words, _))) = if language.is_none() {
consumed(tuple((separated_list1(space1, switch_word), space0)))(remaining)?
let (remaining, (source, words)) = if language.is_none() {
consumed(separated_list1(space1, switch_word(stop_at_parameters)))(remaining)?
} else {
consumed(tuple((separated_list0(space1, switch_word), space0)))(remaining)?
map(
tuple((
space1,
consumed(separated_list0(space1, switch_word(stop_at_parameters))),
)),
|(_, words)| words,
)(remaining)?
};
let mut state = SwitchState::Normal;
@@ -489,6 +508,18 @@ fn _example_src_switches<'s>(
}
}
// Handle state that didn't get processed because we ran out of words.
match state {
SwitchState::Normal => {}
SwitchState::NewLineNumber => {
number_lines = Some(SwitchNumberLines::New(0));
}
SwitchState::ContinuedLineNumber => {
number_lines = Some(SwitchNumberLines::Continued(0));
}
SwitchState::LabelFormat => {}
}
let retain_labels = match retain_labels {
RetainLabels::Keep(_) if !saw_r => RetainLabels::Yes,
_ => retain_labels,
@@ -507,8 +538,18 @@ fn _example_src_switches<'s>(
))
}
fn switch_word<'s>(stop_at_parameters: bool) -> impl Matcher {
move |input| _switch_word(input, stop_at_parameters)
}
#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
fn switch_word<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
fn _switch_word<'s>(
input: OrgSource<'s>,
stop_at_parameters: bool,
) -> Res<OrgSource<'s>, OrgSource<'s>> {
if stop_at_parameters {
not(tag(":"))(input)?;
}
alt((
map(
tuple((tag(r#"""#), is_not("\"\r\n"), tag(r#"""#))),