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118 lines
2.6 KiB
C
118 lines
2.6 KiB
C
// clang-format off
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/*
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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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/*
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* INCLUDE FILES
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*/
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#include "third_party/ctags/general.h" /* must always come first */
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#include "libc/mem/alg.h"
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#include "libc/str/str.h"
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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 {
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K_FUNCTION
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} shKind;
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static kindOption ShKinds [] = {
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{ TRUE, 'f', "function", "functions"}
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};
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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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{
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const char *const scriptName = baseFilename (vStringValue (File.name));
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boolean result = (boolean) (
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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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{
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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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{
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const unsigned char* cp = line;
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boolean functionFound = FALSE;
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if (line [0] == '#')
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continue;
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while (isspace (*cp))
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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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{
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functionFound = TRUE;
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cp += 8;
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if (! isspace ((int) *cp))
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continue;
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while (isspace ((int) *cp))
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++cp;
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}
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if (! (isalnum ((int) *cp) || *cp == '_'))
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continue;
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while (isalnum ((int) *cp) || *cp == '_')
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{
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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))
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++cp;
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if (*cp++ == '(')
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{
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while (isspace ((int) *cp))
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++cp;
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if (*cp == ')' && ! hackReject (name))
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functionFound = TRUE;
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}
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if (functionFound)
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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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{
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static const char *const extensions [] = {
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"sh", "SH", "bsh", "bash", "ksh", "zsh", NULL
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};
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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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