gri3-wm/src/cfgparse.l

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/*
* vim:ts=4:sw=4:expandtab
*
*/
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%option nounput
%option noinput
%option noyy_top_state
%option stack
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%{
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <xcb/xcb.h>
#include "data.h"
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#include "config.h"
#include "log.h"
#include "util.h"
#include "cfgparse.tab.h"
int yycolumn = 1;
#define YY_DECL int yylex (struct context *context)
#define YY_USER_ACTION { \
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context->first_column = yycolumn; \
context->last_column = yycolumn+yyleng-1; \
yycolumn += yyleng; \
}
/* macro to first eat whitespace, then expect a string */
#define WS_STRING do { \
yy_push_state(WANT_STRING); \
yy_push_state(EAT_WHITESPACE); \
} while (0)
%}
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EOL (\r?\n)
%s WANT_STRING
%s WANT_QSTRING
%s BINDSYM_COND
%s ASSIGN_COND
%s ASSIGN_TARGET_COND
%s COLOR_COND
%s OUTPUT_COND
%s FOR_WINDOW_COND
%s EAT_WHITESPACE
%x BUFFER_LINE
%%
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{
/* This is called when a new line is lexed. We only want the
* first line to match to go into state BUFFER_LINE */
if (context->line_number == 0) {
context->line_number = 1;
BEGIN(INITIAL);
yy_push_state(BUFFER_LINE);
}
}
<BUFFER_LINE>^[^\r\n]*/{EOL}? {
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/* save whole line */
context->line_copy = sstrdup(yytext);
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yyless(0);
yy_pop_state();
yy_set_bol(true);
yycolumn = 1;
}
<FOR_WINDOW_COND>"]" { yy_pop_state(); return ']'; }
<EAT_WHITESPACE>[ \t]* { yy_pop_state(); }
<WANT_QSTRING>\"[^\"]+\" {
yy_pop_state();
/* strip quotes */
char *copy = sstrdup(yytext+1);
copy[strlen(copy)-1] = '\0';
yylval.string = copy;
return STR;
}
<WANT_STRING>[^\n]+ { BEGIN(INITIAL); yylval.string = sstrdup(yytext); return STR; }
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<OUTPUT_COND>[a-zA-Z0-9_-]+ { yylval.string = sstrdup(yytext); return OUTPUT; }
^[ \t]*#[^\n]* { return TOKCOMMENT; }
<COLOR_COND>[0-9a-fA-F]+ { yylval.string = sstrdup(yytext); return HEX; }
<ASSIGN_TARGET_COND>[ \t]*→[ \t]* { BEGIN(WANT_STRING); }
<ASSIGN_TARGET_COND>[ \t]+ { BEGIN(WANT_STRING); }
[0-9]+ { yylval.number = atoi(yytext); return NUMBER; }
mode { return TOKMODE; }
bind { yy_push_state(WANT_STRING); yy_push_state(EAT_WHITESPACE); yy_push_state(EAT_WHITESPACE); return TOKBINDCODE; }
bindcode { yy_push_state(WANT_STRING); yy_push_state(EAT_WHITESPACE); yy_push_state(EAT_WHITESPACE); return TOKBINDCODE; }
bindsym { yy_push_state(BINDSYM_COND); yy_push_state(EAT_WHITESPACE); return TOKBINDSYM; }
floating_modifier { BEGIN(INITIAL); return TOKFLOATING_MODIFIER; }
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workspace { BEGIN(INITIAL); return TOKWORKSPACE; }
output { yy_push_state(OUTPUT_COND); yy_push_state(EAT_WHITESPACE); return TOKOUTPUT; }
screen {
/* for compatibility until v3.φ */
ELOG("Assignments to screens are DEPRECATED and will not work. " \
"Please replace them with assignments to outputs.\n");
yy_push_state(OUTPUT_COND); yy_push_state(EAT_WHITESPACE);
return TOKOUTPUT;
}
terminal { WS_STRING; return TOKTERMINAL; }
font { WS_STRING; return TOKFONT; }
assign { yy_push_state(ASSIGN_TARGET_COND); yy_push_state(ASSIGN_COND); return TOKASSIGN; }
set[^\n]* { return TOKCOMMENT; }
ipc-socket { WS_STRING; return TOKIPCSOCKET; }
ipc_socket { WS_STRING; return TOKIPCSOCKET; }
restart_state { WS_STRING; return TOKRESTARTSTATE; }
default_orientation { return TOK_ORIENTATION; }
horizontal { return TOK_HORIZ; }
vertical { return TOK_VERT; }
auto { return TOK_AUTO; }
workspace_layout { return TOK_WORKSPACE_LAYOUT; }
new_window { return TOKNEWWINDOW; }
normal { return TOK_NORMAL; }
none { return TOK_NONE; }
1pixel { return TOK_1PIXEL; }
focus_follows_mouse { return TOKFOCUSFOLLOWSMOUSE; }
force_focus_wrapping { return TOK_FORCE_FOCUS_WRAPPING; }
workspace_bar { return TOKWORKSPACEBAR; }
popup_during_fullscreen { return TOK_POPUP_DURING_FULLSCREEN; }
ignore { return TOK_IGNORE; }
leave_fullscreen { return TOK_LEAVE_FULLSCREEN; }
for_window {
/* Example: for_window [class="urxvt"] border none
*
* First, we wait for the ']' that finishes a match (FOR_WINDOW_COND)
* Then, we require a whitespace (EAT_WHITESPACE)
* And the rest of the line is parsed as a string
*/
yy_push_state(WANT_STRING);
yy_push_state(EAT_WHITESPACE);
yy_push_state(FOR_WINDOW_COND);
return TOK_FOR_WINDOW;
}
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default { /* yylval.number = MODE_DEFAULT; */return TOK_DEFAULT; }
stacking { /* yylval.number = MODE_STACK; */return TOK_STACKING; }
stacked { return TOK_STACKING; }
tabbed { /* yylval.number = MODE_TABBED; */return TOK_TABBED; }
stack-limit { return TOKSTACKLIMIT; }
cols { /* yylval.number = STACK_LIMIT_COLS; */return TOKSTACKLIMIT; }
rows { /* yylval.number = STACK_LIMIT_ROWS; */return TOKSTACKLIMIT; }
exec { WS_STRING; return TOKEXEC; }
exec_always { WS_STRING; return TOKEXEC_ALWAYS; }
client.background { BEGIN(COLOR_COND); yylval.single_color = &config.client.background; return TOKSINGLECOLOR; }
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client.focused { BEGIN(COLOR_COND); yylval.color = &config.client.focused; return TOKCOLOR; }
client.focused_inactive { BEGIN(COLOR_COND); yylval.color = &config.client.focused_inactive; return TOKCOLOR; }
client.unfocused { BEGIN(COLOR_COND); yylval.color = &config.client.unfocused; return TOKCOLOR; }
client.urgent { BEGIN(COLOR_COND); yylval.color = &config.client.urgent; return TOKCOLOR; }
bar.focused { BEGIN(COLOR_COND); yylval.color = &config.bar.focused; return TOKCOLOR; }
bar.unfocused { BEGIN(COLOR_COND); yylval.color = &config.bar.unfocused; return TOKCOLOR; }
bar.urgent { BEGIN(COLOR_COND); yylval.color = &config.bar.urgent; return TOKCOLOR; }
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Mod1 { yylval.number = BIND_MOD1; return MODIFIER; }
Mod2 { yylval.number = BIND_MOD2; return MODIFIER; }
Mod3 { yylval.number = BIND_MOD3; return MODIFIER; }
Mod4 { yylval.number = BIND_MOD4; return MODIFIER; }
Mod5 { yylval.number = BIND_MOD5; return MODIFIER; }
Mode_switch { yylval.number = BIND_MODE_SWITCH; return MODIFIER; }
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control { return TOKCONTROL; }
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ctrl { return TOKCONTROL; }
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shift { return TOKSHIFT; }
class { yy_push_state(WANT_QSTRING); return TOK_CLASS; }
id { yy_push_state(WANT_QSTRING); return TOK_ID; }
con_id { yy_push_state(WANT_QSTRING); return TOK_CON_ID; }
con_mark { yy_push_state(WANT_QSTRING); return TOK_MARK; }
title { yy_push_state(WANT_QSTRING); return TOK_TITLE; }
{EOL} {
FREE(context->line_copy);
context->line_number++;
BEGIN(INITIAL);
yy_push_state(BUFFER_LINE);
}
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<BINDSYM_COND>[ \t]+ { BEGIN(WANT_STRING); }
<OUTPUT_COND>[ \t]+ { BEGIN(WANT_STRING); }
[ \t]+ { /* ignore whitespace */ ; }
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\"[^\"]+\" {
/* if ASSIGN_COND then */
if (yy_start_stack_ptr > 0)
yy_pop_state();
else BEGIN(INITIAL);
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/* yylval will be the string, but without quotes */
char *copy = sstrdup(yytext+1);
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copy[strlen(copy)-1] = '\0';
yylval.string = copy;
return QUOTEDSTRING;
}
<ASSIGN_COND>[^ \t\"]+ { BEGIN(ASSIGN_TARGET_COND); yylval.string = sstrdup(yytext); return STR_NG; }
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<BINDSYM_COND>[a-zA-Z0-9_]+ { yylval.string = sstrdup(yytext); return WORD; }
[a-zA-Z]+ { yylval.string = sstrdup(yytext); return WORD; }
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. { return (int)yytext[0]; }
<<EOF>> {
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while (yy_start_stack_ptr > 0)
yy_pop_state();
yyterminate();
}
%%