88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/*
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* $Id: sh.c 443 2006-05-30 04:37:13Z darren $
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*
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* Copyright (c) 2000-2002, Darren Hiebert
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*
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* This source code is released for free distribution under the terms of the
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* GNU General Public License.
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*
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* This module contains functions for generating tags for scripts for the
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* Bourne shell (and its derivatives, the Korn and Z shells).
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*/
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#include "third_party/ctags/general.h"
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/* must always come first */
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#include "third_party/ctags/parse.h"
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#include "third_party/ctags/read.h"
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#include "third_party/ctags/routines.h"
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#include "third_party/ctags/vstring.h"
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/*
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* DATA DEFINITIONS
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*/
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typedef enum { K_FUNCTION } shKind;
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static kindOption ShKinds[] = {{TRUE, 'f', "function", "functions"}};
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/*
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* FUNCTION DEFINITIONS
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*/
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/* Reject any tag "main" from a file named "configure". These appear in
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* here-documents in GNU autoconf scripts and will add a haystack to the
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* needle.
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*/
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static boolean hackReject(const vString* const tagName) {
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const char* const scriptName = baseFilename(vStringValue(File.name));
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boolean result = (boolean)(strcmp(scriptName, "configure") == 0 &&
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strcmp(vStringValue(tagName), "main") == 0);
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return result;
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}
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static void findShTags(void) {
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vString* name = vStringNew();
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const unsigned char* line;
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while ((line = fileReadLine()) != NULL) {
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const unsigned char* cp = line;
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boolean functionFound = FALSE;
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if (line[0] == '#') continue;
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while (isspace(*cp)) cp++;
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if (strncmp((const char*)cp, "function", (size_t)8) == 0 &&
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isspace((int)cp[8])) {
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functionFound = TRUE;
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cp += 8;
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if (!isspace((int)*cp)) continue;
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while (isspace((int)*cp)) ++cp;
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}
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if (!(isalnum((int)*cp) || *cp == '_')) continue;
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while (isalnum((int)*cp) || *cp == '_') {
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vStringPut(name, (int)*cp);
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++cp;
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}
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vStringTerminate(name);
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while (isspace((int)*cp)) ++cp;
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if (*cp++ == '(') {
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while (isspace((int)*cp)) ++cp;
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if (*cp == ')' && !hackReject(name)) functionFound = TRUE;
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}
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if (functionFound) makeSimpleTag(name, ShKinds, K_FUNCTION);
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vStringClear(name);
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}
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vStringDelete(name);
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}
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extern parserDefinition* ShParser(void) {
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static const char* const extensions[] = {"sh", "SH", "bsh", "bash",
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"ksh", "zsh", NULL};
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parserDefinition* def = parserNew("Sh");
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def->kinds = ShKinds;
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def->kindCount = KIND_COUNT(ShKinds);
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def->extensions = extensions;
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def->parser = findShTags;
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return def;
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}
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/* vi:set tabstop=4 shiftwidth=4: */
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