зеркало из https://github.com/mozilla/pjs.git
226 строки
9.9 KiB
Plaintext
226 строки
9.9 KiB
Plaintext
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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%{
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/* For flex. Requires support for 8-bit characters and case independence. */
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#include "cssI.h"
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#include "csstab.h"
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#undef YY_INPUT
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#define YY_INPUT(buf, result, max_size) css_GetBuf(buf, &result, max_size)
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#if !defined(__cplusplus) && !(__STDC__) && !defined(__TURBOC__)
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/* Stuff from stdlib.h -- needed by win16 */
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#define YY_MALLOC_DECL \
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extern void free (void *); \
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extern void *malloc (size_t size); \
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extern void *realloc (void *, size_t);
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#endif
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static int input(void);
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/* We never take input off of the command line. */
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#define YY_NEVER_INTERACTIVE 1
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#ifdef CSS_PARSE_DEBUG
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#define RETURN(x) {printf("lex returns %d for '%s'\n",x,css_text);return(x);}
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#else
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#define RETURN(x) return(x)
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#endif
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%}
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unicode \\[0-9a-f]{1,4}
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latin1 [<5B>-<2D>]
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escape {unicode}|\\[ -~<7E>-<2D>]
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stringchar {escape}|{latin1}|[ !#$%&(-~]
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nmstrt [a-z]|{latin1}|{escape}
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nmchar [-a-z0-9]|{latin1}|{escape}
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ident {nmstrt}{nmchar}*
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name {nmchar}+
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d [0-9]
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notnm [^-a-z0-9\\]|{latin1}
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w [ \t\n]*
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num {d}+|{d}*\.{d}+
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string \"({stringchar}|\')*\"|\'({stringchar}|\")*\'
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hex [0-9a-f]
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hex3 [0-9a-f]{3}
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hex6 [0-9a-f]{6}
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%x css_comment
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%x css_ignore
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%x css_property
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%x css_value
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%x css_bg
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%x css_font
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%x css_line_height
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%x css_list_style
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%x css_border
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%x css_font_size
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%s css_after_ident
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%%
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%{
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/* CSS1 17 December 1996, with the following changes:
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* 1. Expand whitespace definition in the rules section.
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* 2. Change default rule action to be silent.
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* 3. Require class names to be an IDENT.
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* 4. Require id names to be an IDENT.
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* 5. Return '.' as a separate lexical token;
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* add DOT and DOT_AFTER_IDENT; remove CLASS and CLASS_AFTER_IDENT
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* 6. Return '#' as a separate lexical token;
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* remove HASH and HASH_AFTER_IDENT.
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* 7. Gut the use of AFTER_IDENT tokens for pseudoclasses and pseudoelements.
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* 8. Provide a definition for HEXCOLOR token.
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* move { and } out into state triggers
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* 9. Gave up on preserving any heritage and made use of exclusive states.
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*/
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/* These state variables can be on the stack because their state is not
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* useful across a token return. They should always be set to 0 before
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* starting a new input file.
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*/
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short int css_prior_state = 0;
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short int css_nest_count = 0;
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%}
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\<\!\-\- {BEGIN(0); RETURN(CDO);}
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\-\-\> {BEGIN(0); RETURN(CDC);}
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<css_after_ident>":"link {BEGIN(0);RETURN(LINK_PSCLASS);}
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<css_after_ident>":"visited {BEGIN(0);RETURN(VISITED_PSCLASS);}
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<css_after_ident>":"active {BEGIN(0);RETURN(ACTIVE_PSCLASS);}
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<css_after_ident>"." {BEGIN(0);RETURN(DOT_AFTER_IDENT);}
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{ident} {BEGIN(css_after_ident); RETURN(IDENT);}
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":"link {BEGIN(0);RETURN(LEADING_LINK_PSCLASS);}
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":"visited {BEGIN(0);RETURN(LEADING_VISITED_PSCLASS);}
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":"active {BEGIN(0);RETURN(LEADING_ACTIVE_PSCLASS);}
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":"first-line {BEGIN(0);RETURN(FIRST_LINE);}
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":"first-letter {BEGIN(0);RETURN(FIRST_LETTER);}
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"." {BEGIN(0);RETURN(DOT);}
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[,#;] {BEGIN(0);return (*css_text);}
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[ \t\f\v\r\n]+ {BEGIN(0);}
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@import {BEGIN(0); RETURN(IMPORT_SYM);}
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@fontdef {BEGIN(0); RETURN(FONTDEF);}
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url\({w}{string}{w}\) |
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url\({w}([^ \n\'\")]|\\\ |\\\'|\\\"|\\\))+{w}\) {RETURN(URL);}
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{string} {RETURN(STRING);}
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@{ident} {BEGIN(css_ignore); css_nest_count=0;}
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<css_ignore>{string} |
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<css_ignore>[^;{}]* { /* unrecognized @rules are ignored. */}
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<css_ignore>";" {if (0 == css_nest_count) BEGIN(0);}
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<css_ignore>"{" {css_nest_count++;}
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<css_ignore>"}" {if (0 >= --css_nest_count) BEGIN(0);}
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<*>"/*" {if (css_comment != YY_START) {
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/* Comments cannot be nested. */
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css_prior_state = YY_START;}
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BEGIN(css_comment);}
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<css_comment>[^*]* |
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<css_comment>"*"+[^*/]* {/* Comments function as whitespace. */}
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<css_comment>"*"+"/" {BEGIN(css_prior_state);}
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<css_property,css_value,css_bg,css_font,css_line_height,css_list_style,css_border,css_font_size>[ \t\f\v\r\n]+ {/* whitespace can separate tokens */}
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<css_property,css_value,css_bg,css_font,css_line_height,css_list_style,css_border,css_font_size>"}" {BEGIN(0); return (*css_text);}
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<css_value,css_bg,css_font,css_line_height,css_list_style,css_border,css_font_size>[;] {BEGIN(css_property); return (*css_text);}
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<css_value,css_bg,css_font,css_line_height,css_list_style,css_border,css_font_size>"!"{w}important {RETURN(IMPORTANT_SYM);}
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"{" {BEGIN(css_property); return (*css_text);}
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<css_property>[:] {BEGIN(css_value); return (*css_text);}
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<css_property>[-/+;,#] {return (*css_text);}
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<css_property>"background" {BEGIN(css_bg); RETURN(BACKGROUND);}
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<css_property>font {BEGIN(css_font); RETURN(FONT);}
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<css_property>list-style {BEGIN(css_list_style); RETURN(LIST_STYLE);}
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<css_property>border {BEGIN(css_border); RETURN(BORDER);}
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<css_property>font-size {BEGIN(css_font_size); RETURN(FONT_SIZE_PROPERTY);}
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<css_property>{ident} {RETURN(IDENT);}
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<css_font>italic|oblique {RETURN(FONT_STYLE);}
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<css_font>small-caps {RETURN(FONT_VARIANT);}
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<css_font>bold|bolder|lighter {RETURN(FONT_WEIGHT);}
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<css_font>100|200|300|400|500|600|700|800|900 {RETURN(FONT_WEIGHT);}
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<css_font>normal {RETURN(FONT_NORMAL);}
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<css_font,css_font_size>xx-small|x-small|small|medium {RETURN(FONT_SIZE);}
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<css_font,css_font_size>large|x-large|xx-large|larger|smaller {RETURN(FONT_SIZE);}
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<css_font,css_font_size,css_line_height>{num}"%" {BEGIN(css_font); RETURN(PERCENTAGE);}
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<css_font,css_font_size>0 |
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<css_font,css_font_size,css_line_height>{num}pt/{notnm} |
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<css_font,css_font_size,css_line_height>{num}mm/{notnm} |
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<css_font,css_font_size,css_line_height>{num}cm/{notnm} |
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<css_font,css_font_size,css_line_height>{num}pc/{notnm} |
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<css_font,css_font_size,css_line_height>{num}in/{notnm} |
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<css_font,css_font_size,css_line_height>{num}px/{notnm} {BEGIN(css_font); RETURN(LENGTH);}
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<css_font,css_font_size,css_line_height>{num}em/{notnm} {BEGIN(css_font); RETURN(EMS);}
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<css_font,css_font_size,css_line_height>{num}ex/{notnm} {BEGIN(css_font); RETURN(EXS);}
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<css_font>"/" {BEGIN(css_line_height); return (*css_text);}
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<css_line_height>[-+] {return (*css_text);}
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<css_line_height>{num} {BEGIN(css_font); RETURN(NUMBER);}
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<css_line_height>normal {BEGIN(css_font); RETURN(LINE_HEIGHT);}
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<css_font>{ident} {RETURN(IDENT);}
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<css_font>{string} {RETURN(STRING);}
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<css_font,css_font_size,css_list_style>[:,+] {return (*css_text);}
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<css_list_style>disc|circle|square|decimal|lower-roman|upper-roman|lower-alpha|upper-alpha {RETURN(LS_TYPE);}
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<css_list_style>none {RETURN(LS_NONE);}
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<css_list_style>inside|outside {RETURN(LS_POSITION);}
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<css_bg>transparent {RETURN(BG_COLOR);}
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<css_bg>none {RETURN(BG_IMAGE);}
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<css_bg>repeat|repeat-x|repeat-y|no-repeat {RETURN(BG_REPEAT);}
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<css_bg>scroll|fixed {RETURN(BG_ATTACHMENT);}
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<css_bg>left|right|top|center|bottom {RETURN(BG_POSITION);}
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<css_value,css_bg,css_border>[-/+,#:] {return (*css_text);}
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<css_value,css_bg>{ident} {RETURN(IDENT);}
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<css_value>[)(] {RETURN(IDENT); /* quick b2 hack */}
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<css_value,css_bg>{string} {RETURN(STRING);}
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<css_value,css_bg,css_border>"#"{hex3} |
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<css_value,css_bg,css_border>"#"{hex6} {RETURN(HEXCOLOR);}
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<css_value,css_bg,css_border>rgb\({w}{num}%?{w}\,{w}{num}%?{w}\,{w}{num}%?{w}\) {RETURN(RGB);}
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<css_value,css_bg,css_list_style>url\({w}{string}{w}\) |
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<css_value,css_bg,css_list_style>url\({w}([^ \n\'\")]|\\\ |\\\'|\\\"|\\\))+{w}\) {RETURN(URL);}
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<css_value,css_bg,css_border>{num}"%" {RETURN(PERCENTAGE);}
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<css_value,css_bg,css_border>0 |
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<css_value,css_bg,css_border>{num}pt/{notnm} |
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<css_value,css_bg,css_border>{num}mm/{notnm} |
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<css_value,css_bg,css_border>{num}cm/{notnm} |
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<css_value,css_bg,css_border>{num}pc/{notnm} |
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<css_value,css_bg,css_border>{num}in/{notnm} |
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<css_value,css_bg,css_border>{num}px/{notnm} {RETURN(LENGTH);}
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<css_value,css_bg,css_border>{num}em/{notnm} {RETURN(EMS);}
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<css_value,css_bg,css_border>{num}ex/{notnm} {RETURN(EXS);}
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<css_value>{num} {RETURN(NUMBER);}
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<css_border>none|dotted|dashed|solid|double |
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<css_border>groove|ridge|inset|outset {RETURN(BORDER_STYLE);}
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<css_border>thin|medium|thick {RETURN(BORDER_WIDTH);}
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<css_border>{ident} {RETURN(IDENT);}
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<<EOF>> {BEGIN (0); yyterminate();}
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<*>. {RETURN(WILD);}
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%%
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