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rofi/lexer/theme-lexer.l
2017-01-08 16:16:09 +01:00

336 lines
9.4 KiB
Text

%option noyywrap nounput never-interactive
%option bison-locations
%{
#include <stdio.h>
#include "lexer/theme-parser.h"
int last_state = 0;
GQueue *queue = NULL;
%}
%{
int str_len = 0;
char *input_str = NULL;
#define YY_INPUT(buf,result,max_size) \
{\
if ( input_str == NULL ) { \
errno =0; \
while ( (result = (int) fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
{ \
if( errno != EINTR) \
{ \
YY_FATAL_ERROR( "input in flex scanner failed" ); \
break; \
} \
errno=0; \
clearerr(yyin); \
} \
} else {\
yy_size_t len = MIN (max_size, str_len);\
if ( len > 0 ){\
memcpy (buf, input_str, len);\
input_str+=len;\
str_len-=len;\
result = len;\
} else {\
result = YY_NULL;\
} \
}\
}
#define YY_USER_ACTION {\
yylloc->last_column+= yyleng;\
}
#define YY_LLOC_START {\
yylloc->first_line = yylloc->last_line;\
yylloc->first_column = yylloc->last_column;\
}
%}
WHITESPACE [[:blank:]]
WORD [[:alnum:]-]+
STRING [[:print:]]+
HEX [[:xdigit:]]
NUMBER [[:digit:]]
REAL [[:digit:]]+(\.[[:digit:]]+)?
PX (px)
EM (em)
PERCENT (\%)
ASTERIX \*
CENTER "center"
NORTH "north"
SOUTH "south"
EAST "east"
WEST "west"
LS_DASH "dash"
LS_SOLID "solid"
%x PROPERTIES
%x NAMESTR
%x ENTRY
%x DEFAULTS
%%
%{
YY_LLOC_START
%}
%{
if ( queue == NULL ){
queue = g_queue_new ( );
}
%}
<*>"//" {
int c;
while ((c = input()) != EOF){
if (c == '\n') {
yylloc->last_column = 1;
yylloc->last_line ++;
break;
}
yylloc->last_column++;
}
YY_LLOC_START
}
<*>"/*" {
int c = 0, p;
int nesting_depth = 1;
while (nesting_depth) {
p = c;
c = input();
switch (c) {
case '*': yylloc->last_column++; if (p == '/') { c = 0; nesting_depth++; } break;
case '/': yylloc->last_column++; if (p == '*') { c = 0; nesting_depth--; } break;
case '\n': {
yylloc->last_column = 1;
yylloc->last_line ++;
break;
}
case EOF: nesting_depth = 0; break;
default:
yylloc->last_column++;
;
}
}
YY_LLOC_START
}
<INITIAL>{ASTERIX} {
g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) );
BEGIN(DEFAULTS);
return PDEFAULTS;
}
<DEFAULTS>{WHITESPACE} {}
<DEFAULTS>"\{" {
g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) );
BEGIN(ENTRY);
return BOPEN;
}
/* Go into parsing an entry */
<NAMESTR>"\{" {
g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) );
BEGIN(ENTRY);
return BOPEN;
}
/* Pop out of parsing an entry. */
<ENTRY>"\}" {
g_queue_pop_head ( queue );
BEGIN(GPOINTER_TO_INT(g_queue_pop_head ( queue )));
return BCLOSE;
}
<INITIAL>"#" { g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) ); BEGIN(NAMESTR);return NAME_PREFIX;}
<NAMESTR>\.|{WHITESPACE} { return NSEP; }
<ENTRY>{WORD} { yylval->sval = g_strdup(yytext); return N_STRING;}
<NAMESTR>{WORD} { yylval->sval = g_strdup(yytext); return NAME_ELEMENT;}
/* After Namestr/Classstr we want to go to state str, then to { */
/*<NAMESTR>{WHITESPACE} { BEGIN(GPOINTER_TO_INT (g_queue_pop_head ( queue )));}*/
<INITIAL,ENTRY>{WHITESPACE}+ ; // ignore all whitespace
<PROPERTIES>{WHITESPACE}+ ; // ignore all whitespace
<INITIAL,ENTRY>":" { g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) ); BEGIN(PROPERTIES); return PSEP; }
<PROPERTIES>";" { BEGIN(GPOINTER_TO_INT ( g_queue_pop_head ( queue ))); return PCLOSE;}
<PROPERTIES>(true|false) { yylval->bval= g_strcmp0(yytext, "true") == 0; return T_BOOLEAN;}
<PROPERTIES>{NUMBER}+ { yylval->ival = (int)g_ascii_strtoll(yytext, NULL, 10); return T_INT;}
<PROPERTIES>{NUMBER}+\.{NUMBER}+ { yylval->fval = g_ascii_strtod(yytext, NULL); return T_DOUBLE;}
<PROPERTIES>\"{STRING}\" { yytext[yyleng-1] = '\0'; yylval->sval = g_strdup(&yytext[1]); return T_STRING;}
<PROPERTIES>@{WORD} {
yylval->sval = g_strdup(yytext);
return T_LINK;
}
<PROPERTIES>{REAL}{EM} {
yylval->distance.distance = (double)g_ascii_strtod(yytext, NULL);
yylval->distance.type = PW_EM;
yylval->distance.style = SOLID;
return T_PIXEL;
}
<PROPERTIES>{NUMBER}+{PX} {
yylval->distance.distance = (double)g_ascii_strtoll(yytext, NULL, 10);
yylval->distance.type = PW_PX;
yylval->distance.style = SOLID;
return T_PIXEL;
}
<PROPERTIES>{NUMBER}+{PX}{WHITESPACE}{LS_DASH} {
yylval->distance.distance = (double)g_ascii_strtoll(yytext, NULL, 10);
yylval->distance.type = PW_PX;
yylval->distance.style = DASH;
return T_PIXEL;
}
<PROPERTIES>{NUMBER}+{EM}{WHITESPACE}{LS_DASH} {
yylval->distance.distance = (double)g_ascii_strtoll(yytext, NULL, 10);
yylval->distance.type = PW_PX;
yylval->distance.style = DASH;
return T_PIXEL;
}
<PROPERTIES>{NUMBER}+{PX}{WHITESPACE}{LS_SOLID} {
yylval->distance.distance = (double)g_ascii_strtoll(yytext, NULL, 10);
yylval->distance.type = PW_PX;
yylval->distance.style = SOLID;
return T_PIXEL;
}
<PROPERTIES>{NUMBER}+{EM}{WHITESPACE}{LS_SOLID} {
yylval->distance.distance = (double)g_ascii_strtoll(yytext, NULL, 10);
yylval->distance.type = PW_PX;
yylval->distance.style = SOLID;
return T_PIXEL;
}
<PROPERTIES>{REAL}{PERCENT} {
yylval->distance.distance = (double)g_ascii_strtod(yytext, NULL);
yylval->distance.type = PW_PERCENT;
yylval->distance.style = SOLID;
return T_PIXEL;
}
<PROPERTIES>{REAL}{PERCENT}{WHITESPACE}{LS_SOLID} {
yylval->distance.distance = (double)g_ascii_strtod(yytext, NULL);
yylval->distance.type = PW_PERCENT;
yylval->distance.style = SOLID;
return T_PIXEL;
}
<PROPERTIES>{REAL}{PERCENT}{WHITESPACE}{LS_DASH} {
yylval->distance.distance = (double)g_ascii_strtod(yytext, NULL);
yylval->distance.type = PW_PERCENT;
yylval->distance.style = DASH;
return T_PIXEL;
}
<PROPERTIES>#{HEX}{8} {
union { unsigned int val; struct { unsigned char b,g,r,a;};} val;
val.val = (unsigned int)strtoull ( &yytext[1], NULL, 16);
yylval->colorval.alpha = val.a/255.0;
yylval->colorval.red = val.r/255.0;
yylval->colorval.green = val.g/255.0;
yylval->colorval.blue = val.b/255.0;
return T_COLOR;
}
<PROPERTIES>argb:{HEX}{8} {
union { unsigned int val; struct { unsigned char b,g,r,a;};} val;
val.val = (unsigned int)strtoull ( &yytext[1], NULL, 16);
yylval->colorval.alpha = val.a/255.0;
yylval->colorval.red = val.r/255.0;
yylval->colorval.green = val.g/255.0;
yylval->colorval.blue = val.b/255.0;
return T_COLOR;
}
<PROPERTIES>#{HEX}{6} {
union { unsigned int val; struct { unsigned char b,g,r,a;};} val;
val.val = (unsigned int)g_ascii_strtoull ( &yytext[1], NULL, 16);
yylval->colorval.alpha = 1.0;
yylval->colorval.red = val.r/255.0;
yylval->colorval.green = val.g/255.0;
yylval->colorval.blue = val.b/255.0;
return T_COLOR;
}
<PROPERTIES>rgba\({NUMBER}{1,3},{NUMBER}{1,3},{NUMBER}{1,3},[01](\.{NUMBER}+)?\) {
char *endptr = &yytext[5];
yylval->colorval.red = g_ascii_strtoull ( endptr, &endptr, 10);
yylval->colorval.green= g_ascii_strtoull ( endptr+1, &endptr, 10);
yylval->colorval.blue= g_ascii_strtoull ( endptr+1, &endptr, 10);
yylval->colorval.alpha= g_ascii_strtod ( endptr+1, NULL);
return T_COLOR;
}
<PROPERTIES>rgb\({NUMBER}{1,3},{NUMBER}{1,3},{NUMBER}{1,3}\) {
char *endptr = &yytext[4];
yylval->colorval.red = g_ascii_strtoull ( endptr, &endptr, 10);
yylval->colorval.green = g_ascii_strtoull ( endptr+1, &endptr, 10);
yylval->colorval.blue = g_ascii_strtoull ( endptr+1, &endptr, 10);
yylval->colorval.alpha = 1.0;
return T_COLOR;
}
<PROPERTIES>{CENTER} {
yylval->ival = WL_CENTER;
return T_POSITION;
}
<PROPERTIES>{EAST} {
yylval->ival = WL_EAST;
return T_POSITION;
}
<PROPERTIES>{WEST} {
yylval->ival = WL_WEST;
return T_POSITION;
}
<PROPERTIES>{SOUTH}{EAST} {
yylval->ival = WL_SOUTH_EAST;
return T_POSITION;
}
<PROPERTIES>{SOUTH}{WEST} {
yylval->ival = WL_SOUTH_WEST;
return T_POSITION;
}
<PROPERTIES>{SOUTH} {
yylval->ival = WL_SOUTH;
return T_POSITION;
}
<PROPERTIES>{NORTH}{EAST} {
yylval->ival = WL_NORTH_EAST;
return T_POSITION;
}
<PROPERTIES>{NORTH}{WEST} {
yylval->ival = WL_NORTH_WEST;
return T_POSITION;
}
<PROPERTIES>{NORTH} {
yylval->ival = WL_NORTH;
return T_POSITION;
}
<PROPERTIES>NORTH {
yylval->ival = WL_NORTH;
return T_POSITION;
}
<INITIAL><<EOF>> {
g_queue_free ( queue );
// Reset pointer to NULL
queue = NULL;
yyterminate();
}
<*>\n {
yylloc->last_column = 1;
yylloc->last_line ++;
};
<*>(\r\n) {
yylloc->last_column = 1;
yylloc->last_line ++;
};
<INITIAL>. {
const char *error_msg = "Expected 'root' element or a 'named' element.\n"\
"Place all global properties in a root element:\n"\
" * {\n"\
" }\n";
YY_FATAL_ERROR( error_msg );
}
<*>. {
fprintf(stderr, "Invalid character: '%c'\n", *yytext);
yyterminate();
}
%%