Merge branch 'lex' into next

This commit is contained in:
Michael Stapelberg 2009-09-19 19:06:57 +02:00
commit b1ebbde153
6 changed files with 495 additions and 8 deletions

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@ -3,7 +3,9 @@ TOPDIR=$(shell pwd)
include $(TOPDIR)/common.mk
# Depend on the object files of all source-files in src/*.c and on all header files
FILES=$(patsubst %.c,%.o,$(wildcard src/*.c))
AUTOGENERATED:=src/cfgparse.tab.c src/cfgparse.yy.c
FILES:=$(filter-out $(AUTOGENERATED),$(wildcard src/*.c))
FILES:=$(FILES:.c=.o)
HEADERS=$(wildcard include/*.h)
# Depend on the specific file (.c for each .o) and on all headers
@ -11,13 +13,23 @@ src/%.o: src/%.c ${HEADERS}
echo "CC $<"
$(CC) $(CFLAGS) -c -o $@ $<
all: ${FILES}
all: src/cfgparse.y.o src/cfgparse.yy.o ${FILES}
echo "LINK i3"
$(CC) -o i3 ${FILES} $(LDFLAGS)
$(CC) -o i3 ${FILES} src/cfgparse.y.o src/cfgparse.yy.o $(LDFLAGS)
echo ""
echo "SUBDIR i3-msg"
$(MAKE) TOPDIR=$(TOPDIR) -C i3-msg
src/cfgparse.yy.o: src/cfgparse.l
echo "LEX $<"
lex -i -o $(@:.o=.c) $<
$(CC) $(CFLAGS) -c -o $@ $(@:.o=.c)
src/cfgparse.y.o: src/cfgparse.y
echo "YACC $<"
yacc --debug --verbose -b $(basename $< .y) -d $<
$(CC) $(CFLAGS) -c -o $@ $(<:.y=.tab.c)
install: all
echo "INSTALL"
$(INSTALL) -d -m 0755 $(DESTDIR)/usr/bin
@ -46,7 +58,7 @@ dist: distclean
rm -rf i3-${VERSION}
clean:
rm -f src/*.o
rm -f src/*.o src/cfgparse.tab.{c,h} src/cfgparse.yy.c
$(MAKE) -C docs clean
$(MAKE) -C man clean
$(MAKE) TOPDIR=$(TOPDIR) -C i3-msg clean

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@ -20,6 +20,7 @@
typedef struct Config Config;
extern Config config;
extern bool config_use_lexer;
/**
* Part of the struct Config. It makes sense to group colors for background,
@ -40,6 +41,7 @@ struct Colortriple {
struct Variable {
char *key;
char *value;
char *next_match;
SLIST_ENTRY(Variable) variables;
};

69
src/cfgparse.l Normal file
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@ -0,0 +1,69 @@
%{
#include <stdio.h>
#include "cfgparse.tab.h"
#include <xcb/xcb.h>
#include "data.h"
#include "config.h"
%}
%Start BIND_COND
%Start BIND_AWS_COND
%Start BIND_A2WS_COND
%Start ASSIGN_COND
%Start COLOR_COND
%Start SCREEN_COND
%Start SCREEN_AWS_COND
%%
<BIND_A2WS_COND>[^\n]+ { BEGIN(INITIAL); yylval.string = strdup(yytext); return STR; }
^#[^\n]* { return TOKCOMMENT; }
[0-9]+ { yylval.number = atoi(yytext); return NUMBER; }
<COLOR_COND>[0-9a-fA-F]+ { yylval.string = strdup(yytext); return HEX; }
bind { BEGIN(BIND_COND); return TOKBIND; }
bindsym { BEGIN(BIND_COND); return TOKBINDSYM; }
floating_modifier { return TOKFLOATING_MODIFIER; }
workspace { BEGIN(INITIAL); return TOKWORKSPACE; }
screen { BEGIN(SCREEN_COND); return TOKSCREEN; }
terminal { BEGIN(BIND_AWS_COND); return TOKTERMINAL; }
font { BEGIN(BIND_AWS_COND); return TOKFONT; }
assign { BEGIN(ASSIGN_COND); return TOKASSIGN; }
set[^\n]* { return TOKCOMMENT; }
ipc-socket { BEGIN(BIND_AWS_COND); return TOKIPCSOCKET; }
exec { BEGIN(BIND_AWS_COND); return TOKEXEC; }
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.client.focused; return TOKCOLOR; }
bar.unfocused { BEGIN(COLOR_COND); yylval.color = &config.client.unfocused; return TOKCOLOR; }
bar.urgent { BEGIN(COLOR_COND); yylval.color = &config.client.urgent; return TOKCOLOR; }
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; }
control { return TOKCONTROL; }
shift { return TOKSHIFT; }
→ { return TOKARROW; }
\n /* ignore end of line */;
<SCREEN_AWS_COND>x { return (int)yytext[0]; }
<BIND_COND>[ \t]+ { BEGIN(BIND_AWS_COND); return WHITESPACE; }
<BIND_AWS_COND>[ \t]+ { BEGIN(BIND_A2WS_COND); return WHITESPACE; }
<SCREEN_COND>[ \t]+ { BEGIN(SCREEN_AWS_COND); return WHITESPACE; }
<SCREEN_AWS_COND>[ \t]+ { BEGIN(BIND_A2WS_COND); return WHITESPACE; }
[ \t]+ { return WHITESPACE; }
\"[^\"]+\" {
/* if ASSIGN_COND then */
BEGIN(INITIAL);
/* yylval will be the string, but without quotes */
char *copy = strdup(yytext+1);
copy[strlen(copy)-1] = '\0';
yylval.string = copy;
return QUOTEDSTRING;
}
<ASSIGN_COND>[^ \t]+ { BEGIN(INITIAL); yylval.string = strdup(yytext); return STR_NG; }
[a-zA-Z]+ { yylval.string = strdup(yytext); return WORD; }
. { return (int)yytext[0]; }
%%

379
src/cfgparse.y Normal file
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@ -0,0 +1,379 @@
%{
#include <stdio.h>
#include <string.h>
#include <xcb/xcb.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <errno.h>
#include "data.h"
#include "config.h"
#include "i3.h"
#include "util.h"
#include "queue.h"
#include "table.h"
extern int yylex(void);
extern FILE *yyin;
int yydebug = 1;
void yyerror(const char *str) {
fprintf(stderr,"error: %s\n",str);
}
int yywrap() {
return 1;
}
void parse_file(const char *f) {
SLIST_HEAD(variables_head, Variable) variables = SLIST_HEAD_INITIALIZER(&variables);
int fd, ret, read_bytes = 0;
struct stat stbuf;
char *buf;
FILE *fstr;
char buffer[1026], key[512], value[512];
if ((fd = open(f, O_RDONLY)) == -1)
die("Could not open configuration file: %s\n", strerror(errno));
if (fstat(fd, &stbuf) == -1)
die("Could not fstat file: %s\n", strerror(errno));
buf = smalloc(stbuf.st_size * sizeof(char));
while (read_bytes < stbuf.st_size) {
if ((ret = read(fd, buf + read_bytes, (stbuf.st_size - read_bytes))) < 0)
die("Could not read(): %s\n", strerror(errno));
read_bytes += ret;
}
if (lseek(fd, 0, SEEK_SET) == (off_t)-1)
die("Could not lseek: %s\n", strerror(errno));
if ((fstr = fdopen(fd, "r")) == NULL)
die("Could not fdopen: %s\n", strerror(errno));
while (!feof(fstr)) {
if (fgets(buffer, 1024, fstr) == NULL) {
if (feof(fstr))
break;
die("Could not read configuration file\n");
}
/* sscanf implicitly strips whitespace. Also, we skip comments and empty lines. */
if (sscanf(buffer, "%s %[^\n]", key, value) < 1 ||
key[0] == '#' || strlen(key) < 3)
continue;
if (strcasecmp(key, "set") == 0) {
if (value[0] != '$')
die("Malformed variable assignment, name has to start with $\n");
/* get key/value for this variable */
char *v_key = value, *v_value;
if ((v_value = strstr(value, " ")) == NULL)
die("Malformed variable assignment, need a value\n");
*(v_value++) = '\0';
struct Variable *new = scalloc(sizeof(struct Variable));
new->key = sstrdup(v_key);
new->value = sstrdup(v_value);
SLIST_INSERT_HEAD(&variables, new, variables);
LOG("Got new variable %s = %s\n", v_key, v_value);
continue;
}
}
/* For every custom variable, see how often it occurs in the file and
* how much extra bytes it requires when replaced. */
struct Variable *current, *nearest;
int extra_bytes = 0;
SLIST_FOREACH(current, &variables, variables) {
int extra = (strlen(current->value) - strlen(current->key));
char *next;
for (next = buf;
(next = strcasestr(buf + (next - buf), current->key)) != NULL;
next += strlen(current->key))
extra_bytes += extra;
}
/* Then, allocate a new buffer and copy the file over to the new one,
* but replace occurences of our variables */
char *walk = buf, *destwalk;
char *new = smalloc((stbuf.st_size + extra_bytes) * sizeof(char));
destwalk = new;
while (walk < (buf + stbuf.st_size)) {
/* Find the next variable */
SLIST_FOREACH(current, &variables, variables)
current->next_match = strcasestr(walk, current->key);
nearest = NULL;
int distance = stbuf.st_size;
SLIST_FOREACH(current, &variables, variables) {
if (current->next_match == NULL)
continue;
if ((current->next_match - walk) < distance) {
distance = (current->next_match - walk);
nearest = current;
}
}
if (nearest == NULL) {
/* If there are no more variables, we just copy the rest */
strncpy(destwalk, walk, (buf + stbuf.st_size) - walk);
destwalk += (buf + stbuf.st_size) - walk;
*destwalk = '\0';
break;
} else {
/* Copy until the next variable, then copy its value */
strncpy(destwalk, walk, distance);
strncpy(destwalk + distance, nearest->value, strlen(nearest->value));
walk += distance + strlen(nearest->key);
destwalk += distance + strlen(nearest->value);
}
}
yy_scan_string(new);
if (yyparse() != 0) {
fprintf(stderr, "Could not parse configfile\n");
exit(1);
}
free(new);
free(buf);
}
%}
%union {
int number;
char *string;
struct Colortriple *color;
struct Assignment *assignment;
}
%token <number>NUMBER
%token <string>WORD
%token <string>STR
%token <string>STR_NG
%token <string>HEX
%token TOKBIND
%token TOKTERMINAL
%token TOKCOMMENT
%token TOKFONT
%token TOKBINDSYM
%token MODIFIER
%token TOKCONTROL
%token TOKSHIFT
%token WHITESPACE
%token TOKFLOATING_MODIFIER
%token QUOTEDSTRING
%token TOKWORKSPACE
%token TOKSCREEN
%token TOKASSIGN
%token TOKSET
%token TOKIPCSOCKET
%token TOKEXEC
%token TOKCOLOR
%token TOKARROW
%%
lines: /* empty */
| lines WHITESPACE line
| lines line
;
line:
bind
| bindsym
| floating_modifier
| workspace
| assign
| ipcsocket
| exec
| color
| terminal
| font
| comment
;
comment:
TOKCOMMENT
;
command:
STR
;
bind:
TOKBIND WHITESPACE binding_modifiers NUMBER WHITESPACE command
{
printf("\tFound binding mod%d with key %d and command %s\n", $<number>3, $4, $<string>6);
Binding *new = scalloc(sizeof(Binding));
new->keycode = $<number>4;
new->mods = $<number>3;
new->command = sstrdup($<string>6);
TAILQ_INSERT_TAIL(&bindings, new, bindings);
}
;
bindsym:
TOKBINDSYM WHITESPACE binding_modifiers WORD WHITESPACE command
{
printf("\tFound symbolic mod%d with key %s and command %s\n", $<number>3, $4, $<string>6);
Binding *new = scalloc(sizeof(Binding));
new->symbol = sstrdup($4);
new->mods = $<number>3;
new->command = sstrdup($<string>6);
TAILQ_INSERT_TAIL(&bindings, new, bindings);
}
;
floating_modifier:
TOKFLOATING_MODIFIER WHITESPACE binding_modifiers
{
LOG("floating modifier = %d\n", $<number>3);
config.floating_modifier = $<number>3;
}
;
workspace:
TOKWORKSPACE WHITESPACE NUMBER WHITESPACE TOKSCREEN WHITESPACE screen workspace_name
{
int ws_num = $<number>3;
if (ws_num < 1 || ws_num > 10) {
LOG("Invalid workspace assignment, workspace number %d out of range\n", ws_num);
} else {
workspaces[ws_num - 1].preferred_screen = sstrdup($<string>7);
if ($<string>8 != NULL)
workspace_set_name(&(workspaces[ws_num - 1]), $<string>8);
}
}
;
workspace_name:
/* NULL */ { $<string>$ = NULL; }
| WHITESPACE QUOTEDSTRING { $<string>$ = $<string>2; }
| WHITESPACE STR { $<string>$ = $<string>2; }
;
screen:
NUMBER { asprintf(&$<string>$, "%d", $<number>1); }
| NUMBER 'x' { asprintf(&$<string>$, "%d", $<number>1); }
| NUMBER 'x' NUMBER { asprintf(&$<string>$, "%dx%d", $<number>1, $<number>3); }
| 'x' NUMBER { asprintf(&$<string>$, "x%d", $<number>2); }
;
assign:
TOKASSIGN WHITESPACE window_class WHITESPACE optional_arrow assign_target
{
printf("assignment of %s to %d\n", $<string>3, $<number>6);
struct Assignment *new = $<assignment>6;
new->windowclass_title = strdup($<string>3);
TAILQ_INSERT_TAIL(&assignments, new, assignments);
}
;
assign_target:
NUMBER
{
struct Assignment *new = scalloc(sizeof(struct Assignment));
new->workspace = $<number>1;
new->floating = ASSIGN_FLOATING_NO;
$<assignment>$ = new;
}
| '~'
{
struct Assignment *new = scalloc(sizeof(struct Assignment));
new->floating = ASSIGN_FLOATING_ONLY;
$<assignment>$ = new;
}
| '~' NUMBER
{
struct Assignment *new = scalloc(sizeof(struct Assignment));
new->workspace = $<number>2;
new->floating = ASSIGN_FLOATING;
$<assignment>$ = new;
}
;
window_class:
QUOTEDSTRING
| STR_NG
;
optional_arrow:
/* NULL */
| TOKARROW WHITESPACE
;
ipcsocket:
TOKIPCSOCKET WHITESPACE STR
{
config.ipc_socket_path = sstrdup($<string>3);
}
;
exec:
TOKEXEC WHITESPACE STR
{
struct Autostart *new = smalloc(sizeof(struct Autostart));
new->command = sstrdup($<string>3);
TAILQ_INSERT_TAIL(&autostarts, new, autostarts);
}
;
terminal:
TOKTERMINAL WHITESPACE STR
{
config.terminal = sstrdup($<string>3);
printf("terminal %s\n", config.terminal);
}
;
font:
TOKFONT WHITESPACE STR
{
config.font = sstrdup($<string>3);
printf("font %s\n", config.font);
}
;
color:
TOKCOLOR WHITESPACE colorpixel WHITESPACE colorpixel WHITESPACE colorpixel
{
struct Colortriple *dest = $<color>1;
dest->border = $<number>3;
dest->background = $<number>5;
dest->text = $<number>7;
}
;
colorpixel:
'#' HEX { $<number>$ = get_colorpixel(global_conn, $<string>2); }
;
binding_modifiers:
/* NULL */ { $<number>$ = 0; }
| binding_modifier
| binding_modifiers '+' binding_modifier { $<number>$ = $<number>1 | $<number>3; }
| binding_modifiers '+' { $<number>$ = $<number>1; }
;
binding_modifier:
MODIFIER { $<number>$ = $<number>1; }
| TOKCONTROL { $<number>$ = BIND_CONTROL; }
| TOKSHIFT { $<number>$ = BIND_SHIFT; }
;

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@ -28,6 +28,8 @@
Config config;
bool config_use_lexer = false;
/*
* This function resolves ~ in pathnames.
*
@ -226,6 +228,25 @@ void load_configuration(xcb_connection_t *conn, const char *override_configpath,
config.bar.urgent.background = get_colorpixel(conn, "#900000");
config.bar.urgent.text = get_colorpixel(conn, "#ffffff");
if (config_use_lexer) {
/* Yes, this will be cleaned up soon. */
if (override_configpath != NULL) {
parse_file(override_configpath);
} else {
FILE *handle;
char *globbed = glob_path("~/.i3/config");
if ((handle = fopen(globbed, "r")) == NULL) {
if ((handle = fopen("/etc/i3/config", "r")) == NULL) {
die("Neither \"%s\" nor /etc/i3/config could be opened\n", globbed);
} else {
parse_file("/etc/i3/config");
}
} else {
parse_file(globbed);
}
}
} else {
FILE *handle;
if (override_configpath != NULL) {
if ((handle = fopen(override_configpath, "r")) == NULL)
@ -508,9 +529,6 @@ void load_configuration(xcb_connection_t *conn, const char *override_configpath,
grab_all_keys(conn);
fclose(handle);
REQUIRED_OPTION(terminal);
REQUIRED_OPTION(font);
while (!SLIST_EMPTY(&variables)) {
struct Variable *v = SLIST_FIRST(&variables);
SLIST_REMOVE_HEAD(&variables, variables);
@ -518,6 +536,10 @@ void load_configuration(xcb_connection_t *conn, const char *override_configpath,
free(v->value);
free(v);
}
}
REQUIRED_OPTION(terminal);
REQUIRED_OPTION(font);
/* Set an empty name for every workspace which got no name */
for (int i = 0; i < 10; i++) {

View File

@ -165,7 +165,7 @@ int main(int argc, char *argv[], char *env[]) {
start_argv = argv;
while ((opt = getopt_long(argc, argv, "c:vah", long_options, &option_index)) != -1) {
while ((opt = getopt_long(argc, argv, "c:vahl", long_options, &option_index)) != -1) {
switch (opt) {
case 'a':
LOG("Autostart disabled using -a\n");
@ -177,6 +177,9 @@ int main(int argc, char *argv[], char *env[]) {
case 'v':
printf("i3 version " I3_VERSION " © 2009 Michael Stapelberg and contributors\n");
exit(EXIT_SUCCESS);
case 'l':
config_use_lexer = true;
break;
default:
fprintf(stderr, "Usage: %s [-c configfile] [-a] [-v]\n", argv[0]);
fprintf(stderr, "\n");