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masatakemasatake
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lregex: provide the way to intercept a parser making a tag
TODO: - write about the new option in docs/optlib.rst. - add --_makeTagEntryNotification-<LANG>={{...}}. Signed-off-by: Masatake YAMATO <[email protected]>
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14 files changed

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‎Units/option-makeTagEntryReflection.d/args.ctags

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# See #3020 and #3027.
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--sort=no
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--extras=+q
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--_extradef-Markdown=withfname,appending input filename
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--extras-Markdown=+{withfname}
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--_prelude-Markdown={{
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% You can customize the string combining the original name
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% and the basen name of input file.
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/SEP (@) def
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% dict<original-index:int, withfname-index:int>
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/scope-remapping-table 31 dict def
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% (abc/input.d) dropext => (abc/input)
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% (abc.d/input) dropext => (abc.d/input)
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/dropext {
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(/.) _strrpbrk {
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% string offset
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2 copy get ?/ eq {
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pop
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} {
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0 exch 0 string _copyinterval
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} ifelse
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} if
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} def
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% (abc/efg) basename => (efg)
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/basename {
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?/ _strrchr {
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1 add dup 2 index length exch sub
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0 string _copyinterval
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} if
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} def
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}}
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--_sequel-Markdown={{
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% Fill the scope field of withfname extra tags.
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scope-remapping-table {
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% Make the original tag invisible
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exch dup _markplaceholder
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:scope dup
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% withfname-index:int original-scope:int original-scope:int
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0 eq {
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pop pop
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} {
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% withfname-index:int original-scope:int
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scope-remapping-table exch get
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% withfname-index:int withfname-scope:int
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scope:
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} ifelse
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} forall
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}}
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--_makeTagEntryReflection-Markdown={{
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/Markdown.withfname _extraenabled {
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. :extras {
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/Markdown.withfname _amember not
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} {
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true
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} ifelse
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{
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mark
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. :name
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SEP
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. :input dropext basename
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_buildstring
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. :kind
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. _tagloc _tag dup /Markdown.withfname _markextra
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_commit
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% Record the pair of original-index:int and withfname-index:int.
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scope-remapping-table exch . exch put
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} if
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} if
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}}

‎Units/option-makeTagEntryReflection.d/expected.tags

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ABC@input input.md /^# ABC$/;" c
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DEF@input input.md /^## DEF$/;" s chapter:ABC@input
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GHI@input input.md /^### GHI$/;" S section:ABC@input""DEF@input
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HIJ@input input.md /^### HIJ$/;" S section:ABC@input""DEF@input
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KLM@input input.md /^## KLM$/;" s chapter:ABC@input
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OPQ@input input.md /^# OPQ$/;" c
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RST@input input.md /^### RST$/;" S chapter:OPQ@input

‎Units/option-makeTagEntryReflection.d/input.md

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# ABC
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## DEF
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### GHI
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### HIJ
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## KLM
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# OPQ
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### RST

‎main/dependency.c

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@@ -14,6 +14,7 @@
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#include "debug.h"
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#include "dependency.h"
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#include "entry.h"
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#include "options.h"
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#include "parse_p.h"
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#include "read.h"
@@ -184,14 +185,18 @@ extern void notifyMakeTagEntry (const tagEntryInfo *tag, int corkIndex)
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{
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subparser *s;
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/* running optscript code attaching to --makeTagEntryReflection-<LANG> */
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langType lang = tag->langType;
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notifyLanguageRegexMakeTagEntry (lang, corkIndex);
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foreachSubparser(s, false)
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{
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enterSubparser(s);
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if (s->makeTagEntryNotify)
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{
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enterSubparser(s);
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s->makeTagEntryNotify (s, tag, corkIndex);
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leaveSubparser();
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}
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/* propagate the event recursively */
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notifyMakeTagEntry (tag, corkIndex);
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leaveSubparser();
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}
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}
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‎main/dependency.h

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@@ -43,4 +43,9 @@ struct sSlaveParser {
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slaveParser *next;
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};
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/* These are for CPreProcessor.
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* Don't use in the other parsers. */
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extern void notifyInputStart (void);
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extern void notifyInputEnd (void);
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#endif /* CTAGS_MAIN_DEPENDENCY_H */

‎main/lregex.c

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@@ -2027,6 +2027,14 @@ extern void notifyRegexInputEnd (struct lregexControlBlock *lcb)
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fillEndLineFieldOfUpperScopes (lcb, endline);
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}
20292029

2030+
extern void notifyRegexMakeTagEntry (struct lregexControlBlock *lcb,
2031+
int corkIndex)
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{
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optscriptSetup (optvm, lcb->local_dict, corkIndex);
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scriptEvalHook (optvm, lcb, SCRIPT_HOOK_MAKE_TAG_ENTRY_REFLECTION);
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optscriptTeardown (optvm, lcb->local_dict);
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}
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extern void findRegexTagsMainloop (int (* driver)(void))
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{
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/* merely read all lines of the file */

‎main/lregex_p.h

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@@ -69,6 +69,7 @@ extern bool matchMultitableRegex (struct lregexControlBlock *lcb, const vString*
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extern void notifyRegexInputStart (struct lregexControlBlock *lcb);
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extern void notifyRegexInputEnd (struct lregexControlBlock *lcb);
72+
extern void notifyRegexMakeTagEntry (struct lregexControlBlock *lcb, int corkIndex);
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extern void addRegexTable (struct lregexControlBlock *lcb, const char *name);
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extern void extendRegexTable (struct lregexControlBlock *lcb, const char *src, const char *dist);

‎main/options.c

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@@ -377,6 +377,8 @@ static optionDescription LongOptionDescription [] = {
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{1,1," Define new extra for <LANG>. --extras-<LANG>=+{name} enables it."},
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{1,1," --_fielddef-<LANG>=<name>,<description>"},
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{1,1," Define new field for <LANG>."},
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{1,1," --_makeTagEnryReflection-<LANG>={{ optscript-code }}"},
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{1,1," Specify code run when <LANG> parser makes a tag."},
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{1,1," --_mtable-extend-<LANG>=disttable+srctable."},
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{1,1," Copy patterns of a regex table to another regex table."},
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{1,1," --_mtable-regex-<LANG>=<table>/<line_pattern>/<name_pattern>/[<flags>]"},
@@ -3350,6 +3352,8 @@ static void processLongOption (
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;
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else if (processSequelOption (option, parameter))
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;
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else if (processMakeTagEntryReflectionOption (option, parameter))
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;
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else if (processPretendOption (option, parameter))
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;
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else if (processRolesOption (option, parameter))

‎main/options_p.h

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@@ -176,6 +176,7 @@ extern bool processRoledefOption (const char *const option, const char *const pa
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extern bool processScopesepOption (const char *const option, const char *const parameter);
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extern bool processPreludeOption (const char *const option, const char *const parameter);
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extern bool processSequelOption (const char *const option, const char *const parameter);
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extern bool processMakeTagEntryReflectionOption (const char *const option, const char *const parameter);
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extern bool processPretendOption (const char *const option, const char *const parameter);
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extern bool processRolesOption (const char *const option, const char *const parameter);
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‎main/parse.c

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@@ -3797,6 +3797,11 @@ extern void notifyLanguageRegexInputEnd (langType language)
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notifyRegexInputEnd((LanguageTable + language)->lregexControlBlock);
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}
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3800+
extern void notifyLanguageRegexMakeTagEntry (langType language, int corkIndex)
3801+
{
3802+
notifyRegexMakeTagEntry((LanguageTable + language)->lregexControlBlock, corkIndex);
3803+
}
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38003805
static unsigned int parserCorkFlags (parserDefinition *parser)
38013806
{
38023807
subparser *tmp;
@@ -5108,6 +5113,11 @@ extern bool processSequelOption (const char *const option, const char *const par
51085113
return processHookOption (option, parameter, "_sequel-", SCRIPT_HOOK_SEQUEL);
51095114
}
51105115

5116+
extern bool processMakeTagEntryReflectionOption (const char *const option, const char *const parameter)
5117+
{
5118+
return processHookOption (option, parameter, "_makeTagEntryReflection-", SCRIPT_HOOK_MAKE_TAG_ENTRY_REFLECTION);
5119+
}
5120+
51115121
extern bool processPretendOption (const char *const option, const char *const parameter)
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{
51135123
langType new_language, old_language;

‎main/parse.h

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@@ -74,6 +74,7 @@ typedef enum {
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enum scriptHook {
7575
SCRIPT_HOOK_PRELUDE,
7676
SCRIPT_HOOK_SEQUEL,
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SCRIPT_HOOK_MAKE_TAG_ENTRY_REFLECTION,
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SCRIPT_HOOK_MAX,
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};
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‎main/parse_p.h

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@@ -140,6 +140,7 @@ extern void freeEncodingResources (void);
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extern bool processLanguageRegexOption (langType language, enum regexParserType regptype, const char *const parameter);
141141
extern void notifyLanguageRegexInputStart (langType language);
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extern void notifyLanguageRegexInputEnd (langType language);
143+
extern void notifyLanguageRegexMakeTagEntry (langType language, int corkIndex);
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144145
extern void matchLanguageRegex (const langType language, const vString* const line);
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extern void freeRegexResources (void);

‎main/subparser_p.h

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@@ -29,8 +29,6 @@ extern langType getSubparserLanguage (subparser *s);
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/* A base parser doesn't have to call the following three functions.
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The main part calls them internally. */
32-
extern void notifyInputStart (void);
33-
extern void notifyInputEnd (void);
3432
extern void notifyMakeTagEntry (const tagEntryInfo *info, int corkIndex);
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3634
extern void setupSubparsersInUse (struct slaveControlBlock *controlBlock);

‎parsers/cpreprocessor.c

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@@ -16,6 +16,7 @@
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#include <string.h>
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#include "debug.h"
19+
#include "dependency.h" /* notifyInputStart, notifyInputEnd */
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#include "entry.h"
2021
#include "htable.h"
2122
#include "cpreprocessor.h"
@@ -348,6 +349,14 @@ static void cppInitCommon(langType clientLang,
348349
: clientLang) & CORK_SYMTAB))
349350
? makeMacroTable ()
350351
: NULL;
352+
353+
if (Cpp.lang != Cpp.clientLang
354+
&& Cpp.clientLang != LANG_IGNORE)
355+
{
356+
pushLanguage (Cpp.lang);
357+
notifyInputStart ();
358+
popLanguage ();
359+
}
351360
}
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353362
extern void cppInit (const bool state, const bool hasAtLiteralStrings,
@@ -381,6 +390,14 @@ static void cppClearMacroInUse (cppMacroInfo **pM)
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382391
extern void cppTerminate (void)
383392
{
393+
if (Cpp.lang != Cpp.clientLang
394+
&& Cpp.clientLang != LANG_IGNORE)
395+
{
396+
pushLanguage (Cpp.lang);
397+
notifyInputEnd ();
398+
popLanguage ();
399+
}
400+
384401
if (Cpp.directive.name != NULL)
385402
{
386403
vStringDelete (Cpp.directive.name);

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