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bz#786451, add css support

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This commit is contained in:
Than Ngo 2012-02-08 14:06:44 +01:00
parent efa8e2dae2
commit 954bda372a
2 changed files with 267 additions and 2 deletions
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260
ctags-5.8-css.patch Normal file
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@ -0,0 +1,260 @@
diff -up ctags-5.8/css.c.me ctags-5.8/css.c
--- ctags-5.8/css.c.me 2012-02-08 13:59:35.000000000 +0100
+++ ctags-5.8/css.c 2012-02-08 13:55:16.000000000 +0100
@@ -0,0 +1,226 @@
+/***************************************************************************
+ * css.c
+ * Character-based parser for Css definitions
+ * Author - Iago Rubio <iagorubio(at)users.sourceforge.net>
+ **************************************************************************/
+#include "general.h"
+
+#include <string.h>
+#include <ctype.h>
+
+#include "parse.h"
+#include "read.h"
+
+
+typedef enum eCssKinds {
+ K_NONE = -1, K_CLASS, K_SELECTOR, K_ID
+} cssKind;
+
+static kindOption CssKinds [] = {
+ { TRUE, 'c', "class", "classes" },
+ { TRUE, 's', "selector", "selectors" },
+ { TRUE, 'i', "id", "identities" }
+};
+
+typedef enum _CssParserState { // state of parsing
+ P_STATE_NONE, // default state
+ P_STATE_IN_COMMENT, // into a comment, only multi line in CSS
+ P_STATE_IN_SINGLE_STRING, // into a single quoted string
+ P_STATE_IN_DOUBLE_STRING, // into a double quoted string
+ P_STATE_IN_DEFINITION, // on the body of the style definition, nothing for us
+ P_STATE_IN_MEDIA, // on a @media declaration, can be multi-line
+ P_STATE_IN_IMPORT, // on a @import declaration, can be multi-line
+ P_STATE_IN_NAMESPACE, // on a @namespace declaration
+ P_STATE_IN_PAGE, // on a @page declaration
+ P_STATE_IN_FONTFACE, // on a @font-face declaration
+ P_STATE_AT_END // end of parsing
+} CssParserState;
+
+static void makeCssSimpleTag( vString *name, cssKind kind, boolean delete )
+{
+ vStringTerminate (name);
+ makeSimpleTag (name, CssKinds, kind);
+ vStringClear (name);
+ if( delete )
+ vStringDelete (name);
+}
+
+static boolean isCssDeclarationAllowedChar( const unsigned char *cp )
+{
+ return isalnum ((int) *cp) ||
+ isspace ((int) *cp) ||
+ *cp == '_' || // allowed char
+ *cp == '-' || // allowed char
+ *cp == '+' || // allow all sibling in a single tag
+ *cp == '>' || // allow all child in a single tag
+ *cp == '{' || // allow the start of the declaration
+ *cp == '.' || // allow classes and selectors
+ *cp == ',' || // allow multiple declarations
+ *cp == ':' || // allow pseudo classes
+ *cp == '*' || // allow globs as P + *
+ *cp == '#'; // allow ids
+}
+
+static CssParserState parseCssDeclaration( const unsigned char **position, cssKind kind )
+{
+ vString *name = vStringNew ();
+ const unsigned char *cp = *position;
+
+ // pick to the end of line including children and sibling
+ // if declaration is multiline go for the next line
+ while ( isCssDeclarationAllowedChar(cp) ||
+ *cp == '\0' ) // track the end of line into the loop
+ {
+ if( (int) *cp == '\0' )
+ {
+ cp = fileReadLine ();
+ if( cp == NULL ){
+ makeCssSimpleTag(name, kind, TRUE);
+ *position = cp;
+ return P_STATE_AT_END;
+ }
+ }
+ else if( *cp == ',' )
+ {
+ makeCssSimpleTag(name, kind, TRUE);
+ *position = ++cp;
+ return P_STATE_NONE;
+ }
+ else if( *cp == '{' )
+ {
+ makeCssSimpleTag(name, kind, TRUE);
+ *position = ++cp;
+ return P_STATE_IN_DEFINITION;
+ }
+
+ vStringPut (name, (int) *cp);
+ ++cp;
+ }
+
+ makeCssSimpleTag(name, kind, TRUE);
+ *position = cp;
+
+ return P_STATE_NONE;
+}
+
+static CssParserState parseCssLine( const unsigned char *line, CssParserState state )
+{
+ vString *aux;
+
+ while( *line != '\0' ) // fileReadLine returns NULL terminated strings
+ {
+ while (isspace ((int) *line))
+ ++line;
+ switch( state )
+ {
+ case P_STATE_NONE:
+ // pick first char if alphanumeric is a selector
+ if( isalnum ((int) *line) )
+ state = parseCssDeclaration( &line, K_SELECTOR );
+ else if( *line == '.' ) // a class
+ state = parseCssDeclaration( &line, K_CLASS );
+ else if( *line == '#' ) // an id
+ state = parseCssDeclaration( &line, K_ID );
+ else if( *line == '@' ) // at-rules, we'll ignore them
+ {
+ ++line;
+ aux = vStringNew();
+ while( !isspace((int) *line) )
+ {
+ vStringPut (aux, (int) *line);
+ ++line;
+ }
+ vStringTerminate (aux);
+ if( strcmp( aux->buffer, "media" ) == 0 )
+ state = P_STATE_IN_MEDIA;
+ else if ( strcmp( aux->buffer, "import" ) == 0 )
+ state = P_STATE_IN_IMPORT;
+ else if ( strcmp( aux->buffer, "namespace" ) == 0 )
+ state = P_STATE_IN_NAMESPACE;
+ else if ( strcmp( aux->buffer, "page" ) == 0 )
+ state = P_STATE_IN_PAGE;
+ else if ( strcmp( aux->buffer, "font-face" ) == 0 )
+ state = P_STATE_IN_FONTFACE;
+ vStringDelete (aux);
+ }
+ else if( *line == '*' && *(line-1) == '/' ) // multi-line comment
+ state = P_STATE_IN_COMMENT;
+ break;
+ case P_STATE_IN_COMMENT:
+ if( *line == '/' && *(line-1) == '*')
+ state = P_STATE_NONE;
+ break;
+ case P_STATE_IN_SINGLE_STRING:
+ if( *line == '\'' && *(line-1) != '\\' )
+ state = P_STATE_IN_DEFINITION; // PAGE, FONTFACE and DEFINITION are treated the same way
+ break;
+ case P_STATE_IN_DOUBLE_STRING:
+ if( *line=='"' && *(line-1) != '\\' )
+ state = P_STATE_IN_DEFINITION; // PAGE, FONTFACE and DEFINITION are treated the same way
+ break;
+ case P_STATE_IN_MEDIA:
+ // skip to start of media body or line end
+ while( *line != '{' )
+ {
+ if( *line == '\0' )
+ break;
+ ++line;
+ }
+ if( *line == '{' )
+ state = P_STATE_NONE;
+ break;
+ case P_STATE_IN_IMPORT:
+ case P_STATE_IN_NAMESPACE:
+ // skip to end of declaration or line end
+ while( *line != ';' )
+ {
+ if( *line == '\0' )
+ break;
+ ++line;
+ }
+ if( *line == ';' )
+ state = P_STATE_NONE;
+ break;
+ case P_STATE_IN_PAGE:
+ case P_STATE_IN_FONTFACE:
+ case P_STATE_IN_DEFINITION:
+ if( *line == '}' )
+ state = P_STATE_NONE;
+ else if( *line == '\'' )
+ state = P_STATE_IN_SINGLE_STRING;
+ else if( *line == '"' )
+ state = P_STATE_IN_DOUBLE_STRING;
+ break;
+ case P_STATE_AT_END:
+ return state;
+ break;
+ }
+ line++;
+ }
+ return state;
+}
+
+static void findCssTags (void)
+{
+ const unsigned char *line;
+ CssParserState state = P_STATE_NONE;
+
+ while ( (line = fileReadLine ()) != NULL )
+ {
+ state = parseCssLine( line, state );
+ if( state==P_STATE_AT_END ) return;
+ }
+}
+
+/* parser definition */
+extern parserDefinition* CssParser (void)
+{
+ static const char *const extensions [] = { "css", NULL };
+ parserDefinition* def = parserNew ("CSS");
+ def->kinds = CssKinds;
+ def->kindCount = KIND_COUNT (CssKinds);
+ def->extensions = extensions;
+ def->parser = findCssTags;
+ return def;
+}
+
diff -up ctags-5.8/parsers.h.me ctags-5.8/parsers.h
--- ctags-5.8/parsers.h.me 2012-02-08 13:56:46.000000000 +0100
+++ ctags-5.8/parsers.h 2012-02-08 13:57:25.000000000 +0100
@@ -26,6 +26,7 @@
CppParser, \
CsharpParser, \
CobolParser, \
+ CssParser, \
DosBatchParser, \
EiffelParser, \
ErlangParser, \
diff -up ctags-5.8/source.mak.me ctags-5.8/source.mak
--- ctags-5.8/source.mak.me 2012-02-08 13:58:02.000000000 +0100
+++ ctags-5.8/source.mak 2012-02-08 13:58:42.000000000 +0100
@@ -17,6 +17,7 @@ SOURCES = \
beta.c \
c.c \
cobol.c \
+ css.c \
dosbatch.c \
eiffel.c \
entry.c \
@@ -79,6 +80,7 @@ OBJECTS = \
beta.$(OBJEXT) \
c.$(OBJEXT) \
cobol.$(OBJEXT) \
+ css.$(OBJEXT) \
dosbatch.$(OBJEXT) \
eiffel.$(OBJEXT) \
entry.$(OBJEXT) \

9
ctags.spec
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@ -1,13 +1,14 @@
Summary: A C programming language indexing and/or cross-reference tool
Name: ctags
Version: 5.8
Release: 4%{?dist}
Release: 5%{?dist}
License: GPLv2+ or Public Domain
Group: Development/Tools
URL: http://ctags.sourceforge.net/
Source0: http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.gz
Patch0: ctags-5.7-destdir.patch
Patch1: ctags-5.7-segment-fault.patch
URL: http://ctags.sourceforge.net/
Patch2: ctags-5.8-css.patch
Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
%description
@ -43,6 +44,7 @@ Note: some command line options is not compatible with GNU etags.
%setup -q
%patch0 -p1 -b .destdir
%patch1 -p1 -b .crash
%patch2 -p1 -b .css-support
%build
%configure
@ -85,6 +87,9 @@ rm -rf %{buildroot}
%{_mandir}/man1/etags.%{name}.1*
%changelog
* Wed Feb 08 2012 Than Ngo <than@redhat.com> - 5.8-5
- bz#786451, add css support
* Fri Jan 13 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 5.8-4
- Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass_Rebuild