502 lines
9.2 KiB
C
502 lines
9.2 KiB
C
#include "edje_cc.h"
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static void new_object(void);
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static void new_statement(void);
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static int isdelim(char c);
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static char *next_token(char *p, char *end, char **new_p, int *delim);
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static char *stack_id(void);
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static void stack_chop_top(void);
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static void parse(char *data, off_t size);
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int line = 0;
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Evas_List *stack = NULL;
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Evas_List *params = NULL;
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static void
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new_object(void)
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{
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char *id;
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int i;
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int handled = 0;
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id = stack_id();
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for (i = 0; i < object_handler_num(); i++)
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{
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if (!strcmp(object_handlers[i].type, id))
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{
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handled = 1;
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if (object_handlers[i].func)
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{
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object_handlers[i].func();
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}
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break;
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}
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}
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if (!handled)
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{
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fprintf(stderr, "%s: Error. %s:%i unhandled keyword %s\n",
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progname, file_in, line, evas_list_data(evas_list_last(stack)));
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exit(-1);
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}
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free(id);
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}
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static void
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new_statement(void)
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{
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char *id;
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int i;
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int handled = 0;
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id = stack_id();
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for (i = 0; i < statement_handler_num(); i++)
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{
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if (!strcmp(statement_handlers[i].type, id))
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{
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handled = 1;
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if (statement_handlers[i].func)
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{
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statement_handlers[i].func();
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}
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break;
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}
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}
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if (!handled)
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{
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fprintf(stderr, "%s: Error. %s:%i unhandled keyword %s\n",
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progname, file_in, line, evas_list_data(evas_list_last(stack)));
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exit(-1);
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}
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free(id);
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}
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static int
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isdelim(char c)
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{
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const char *delims = "{},;";
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char *d;
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d = (char *)delims;
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while (*d)
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{
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if (c == *d) return 1;
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d++;
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}
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return 0;
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}
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static char *
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next_token(char *p, char *end, char **new_p, int *delim)
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{
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char *tok_start = NULL, *tok_end = NULL, *tok = NULL, *sa_start = NULL;
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int in_tok = 0;
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int in_quote = 0;
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int in_comment_ss = 0;
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int in_comment_sa = 0;
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int had_quote = 0;
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*delim = 0;
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if (p >= end) return NULL;
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while (p < end)
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{
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if (*p == '\n')
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{
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in_comment_ss = 0;
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line++;
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}
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if ((!in_comment_ss) && (!in_comment_sa))
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{
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if ((!in_quote) && (*p == '/') && (p < (end - 1)) && (*(p + 1) == '/'))
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in_comment_ss = 1;
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if ((!in_quote) && (*p == '/') && (p < (end - 1)) && (*(p + 1) == '*'))
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{
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in_comment_sa = 1;
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sa_start = p;
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}
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}
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if ((!in_comment_ss) && (!in_comment_sa))
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{
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if (!in_tok)
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{
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if (!in_quote)
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{
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if (!isspace(*p))
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{
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if (*p == '"')
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{
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in_quote = 1;
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had_quote = 1;
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}
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in_tok = 1;
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tok_start = p;
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if (isdelim(*p)) *delim = 1;
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}
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}
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}
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else
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{
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if (in_quote)
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{
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if (((*p) == '"') && (*(p - 1) != '\\'))
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{
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in_quote = 0;
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had_quote = 1;
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}
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}
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else
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{
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if (*p == '"')
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{
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in_quote = 1;
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had_quote = 1;
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}
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if (
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(isspace(*p)) ||
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((*delim) && (!isdelim(*p))) ||
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(isdelim(*p))
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)
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{
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in_tok = 0;
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tok_end = p - 1;
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if (*p == '\n') line--;
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goto done;
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}
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}
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}
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}
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if (in_comment_sa)
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{
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if ((*p == '/') && (*(p - 1) == '*') && ((p - sa_start) > 2))
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in_comment_sa = 0;
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}
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p++;
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}
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if (!in_tok) return NULL;
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tok_end = p - 1;
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done:
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*new_p = p;
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tok = malloc(tok_end - tok_start + 2);
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if (!tok)
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{
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fprintf(stderr, "%s: Error. memory allocation of %i bytes failed. %s\n",
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progname, tok_end - tok_start + 2, strerror(errno));
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exit(-1);
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}
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strncpy(tok, tok_start, tok_end - tok_start + 1);
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tok[tok_end - tok_start + 1] = 0;
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if (had_quote)
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{
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p = tok;
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while (*p)
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{
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if (*p == '"')
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strcpy(p, p + 1);
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else if ((*p == '\\') && (*(p + 1) == '"'))
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strcpy(p, p + 1);
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else if ((*p == '\\') && (*(p + 1) == '\\'))
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strcpy(p, p + 1);
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p++;
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}
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}
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return tok;
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}
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static char *
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stack_id(void)
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{
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char *id;
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int len;
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Evas_List *l;
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len = 0;
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for (l = stack; l; l = l->next)
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len += strlen(l->data) + 1;
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id = malloc(len);
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if (!id)
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{
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fprintf(stderr, "%s: Error. memory allocation of %i bytes failed. %s\n",
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progname, len, strerror(errno));
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exit(-1);
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}
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id[0] = 0;
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for (l = stack; l; l = l->next)
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{
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strcat(id, l->data);
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if (l->next) strcat(id, ".");
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}
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return id;
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}
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static void
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stack_chop_top(void)
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{
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char *top;
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/* remove top from stack */
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top = evas_list_data(evas_list_last(stack));
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if (top)
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{
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free(top);
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stack = evas_list_remove(stack, top);
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}
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else
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{
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fprintf(stderr, "%s: Error. parse error %s:%i. } marker without matching { marker\n",
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progname, file_in, line);
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exit(-1);
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}
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}
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static void
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parse(char *data, off_t size)
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{
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char *p, *end, *token;
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int delim = 0;
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int do_params = 0;
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p = data;
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end = data + size;
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line = 1;
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while ((token = next_token(p, end, &p, &delim)) != NULL)
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{
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if (delim)
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{
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if (!strcmp(token, ",")) do_params = 1;
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else if (!strcmp(token, "}"))
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{
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if (do_params)
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{
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fprintf(stderr, "%s: Error. parse error %s:%i. } marker before ; marker\n",
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progname, file_in, line);
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exit(-1);
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}
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else
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stack_chop_top();
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}
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else if (!strcmp(token, ";"))
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{
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if (do_params)
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{
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do_params = 0;
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new_statement();
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/* clear out params */
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while (params)
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{
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free(params->data);
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params = evas_list_remove(params, params->data);
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}
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/* remove top from stack */
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stack_chop_top();
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}
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}
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else if (!strcmp(token, "{"))
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{
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if (do_params)
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{
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fprintf(stderr, "%s: Error. parse error %s:%i. { marker before ; marker\n",
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progname, file_in, line);
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exit(-1);
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}
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}
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free(token);
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}
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else
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{
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if (do_params)
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params = evas_list_append(params, token);
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else
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{
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stack = evas_list_append(stack, token);
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new_object();
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}
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}
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}
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}
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void
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compile(void)
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{
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int fd;
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off_t size;
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char *data;
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fd = open(file_in, O_RDONLY);
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if (fd < 0)
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{
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fprintf(stderr, "%s: Error. cannot open file %s for input. %s\n",
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progname, file_in, strerror(errno));
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exit(-1);
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}
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size = lseek(fd, 0, SEEK_END);
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lseek(fd, 0, SEEK_SET);
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data = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
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if (data)
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{
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parse(data, size);
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munmap(data, size);
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}
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else
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{
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fprintf(stderr, "%s: Error. cannot mmap file %s for input. %s\n",
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progname, file_in, strerror(errno));
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exit(-1);
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}
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close(fd);
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}
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char *
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parse_str(int n)
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{
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char *str;
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char *s;
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str = evas_list_nth(params, n);
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if (!str)
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{
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fprintf(stderr, "%s: Error. %s:%i no parameter supplied as argument %i\n",
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progname, file_in, line, n + 1);
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exit(-1);
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}
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s = strdup(str);
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if (!s)
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{
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fprintf(stderr, "%s: Error. memory allocation of %i bytes failed. %s\n",
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progname, strlen(str) + 1, strerror(errno));
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exit(-1);
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}
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return s;
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}
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int
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parse_enum(int n, ...)
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{
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char *str;
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va_list va;
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str = evas_list_nth(params, n);
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if (!str)
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{
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fprintf(stderr, "%s: Error. %s:%i no parameter supplied as argument %i\n",
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progname, file_in, line, n + 1);
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exit(-1);
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}
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va_start(va, n);
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for (;;)
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{
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char *s;
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int v;
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s = va_arg(va, char *);
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if (!s)
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{
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fprintf(stderr, "%s: Error. %s:%i token %s not one of:",
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progname, file_in, line, str);
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va_start(va, n);
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s = va_arg(va, char *);
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while (s)
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{
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v = va_arg(va, int);
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fprintf(stderr, " %s", s);
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s = va_arg(va, char *);
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if (!s) break;
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}
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fprintf(stderr, "\n");
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va_end(va);
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exit(-1);
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}
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v = va_arg(va, int);
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if (!strcmp(s, str))
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{
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va_end(va);
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return v;
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}
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}
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va_end(va);
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return 0;
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}
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int
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parse_int(int n)
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{
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char *str;
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int i;
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str = evas_list_nth(params, n);
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if (!str)
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{
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fprintf(stderr, "%s: Error. %s:%i no parameter supplied as argument %i\n",
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progname, file_in, line, n + 1);
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exit(-1);
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}
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i = atoi(str);
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return i;
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}
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int
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parse_int_range(int n, int f, int t)
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{
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char *str;
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int i;
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str = evas_list_nth(params, n);
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if (!str)
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{
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fprintf(stderr, "%s: Error. %s:%i no parameter supplied as argument %i\n",
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progname, file_in, line, n + 1);
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exit(-1);
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}
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i = atoi(str);
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if ((i < f) || (i > t))
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{
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fprintf(stderr, "%s: Error. %s:%i integer %i out of range of %i to %i inclusive\n",
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progname, file_in, line, i, f, t);
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exit(-1);
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}
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return i;
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}
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double
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parse_float(int n)
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{
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char *str;
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double i;
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str = evas_list_nth(params, n);
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if (!str)
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{
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fprintf(stderr, "%s: Error. %s:%i no parameter supplied as argument %i\n",
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progname, file_in, line, n + 1);
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exit(-1);
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}
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i = atof(str);
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return i;
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}
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double
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parse_float_range(int n, int f, int t)
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{
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char *str;
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double i;
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str = evas_list_nth(params, n);
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if (!str)
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{
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fprintf(stderr, "%s: Error. %s:%i no parameter supplied as argument %i\n",
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progname, file_in, line, n + 1);
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exit(-1);
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}
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i = atoi(str);
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if ((i < f) || (i > t))
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{
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fprintf(stderr, "%s: Error. %s:%i integer %i out of range of %i to %i inclusive\n",
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progname, file_in, line, i, f, t);
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exit(-1);
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}
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return i;
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}
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