+++ /dev/null
-/* src/common/parse_file.c
- *
- * This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
- * or any later version. For details on its copyright, license, and warranties,
- * see the file NOTICE in the root directory of the PlomRogue source package.
- */
-
-#define _POSIX_C_SOURCE 200809L /* strdup(), snprintf() */
-#include "parse_file.h"
-#include <stddef.h> /* size_t, NULL */
-#include <stdio.h> /* FILE, snprintf() */
-#include <stdint.h> /* int16_t,uint8_t,uint32_t, INT16_MIN, UINT{8,16,32}_MAX */
-#include <stdlib.h> /* atoi(), free() */
-#include <string.h> /* strchr, strcmp(), strdup(), strlen() */
-#include "rexit.h" /* exit_err(), exit_trouble() */
-#include "try_malloc.h" /* try_malloc() */
-
-
-
-/* Set by parse_file(), helps err_line() deciding what to do/output on error. */
-static uint32_t err_line_count = 0;
-static char * err_line_line = NULL;
-static char * err_line_intro = NULL;
-static uint8_t err_line_exit = 1;
-
-
-
-/* Determines the end of the token_from_line() token. */
-static void set_token_end(char ** start, char ** limit_char);
-
-
-
-static void set_token_end(char ** start, char ** limit_char)
-{
- char * end_quote = ('\'' == (* start)[0]) ? strchr(* start + 1, '\''): NULL;
- * start = (end_quote) ? * start + 1 : *start;
- if (end_quote)
- {
- * end_quote = '\0';
- * limit_char = end_quote;
- return;
- }
- char * space = strchr(*start, ' ');
- char * tab = strchr(*start, '\t');
- space = (!space || (tab && tab < space)) ? tab : space;
- if (space)
- {
- * space = '\0';
- }
- *limit_char = strchr(*start, '\0');
-}
-
-
-
-extern void set_err_line_options(char * intro, char * line, uint8_t exit)
-{
- err_line_line = line;
- err_line_intro = intro;
- err_line_exit = exit;
-}
-
-
-
-extern void err_line_inc()
-{
- err_line_count++;
- err_line(UINT32_MAX == err_line_count, "Line reaches max lines limit.");
-}
-
-
-
-extern void err_line_zero()
-{
- err_line_count = 0;
-}
-
-
-
-extern uint8_t err_line(uint8_t test, char * msg)
-{
- if (!test)
- {
- return 0;
- }
- char * prefix = " Offending line ";
- char * affix = ": ";
- size_t size = strlen(err_line_intro) + strlen(msg) + strlen(prefix)
- + 10 /* strlen for uint32_t representations */
- + strlen(affix) + strlen(err_line_line) + 1;
- char * err = try_malloc(size, __func__);
- int ret = snprintf(err, size, "%s%s%s%d%s%s", err_line_intro, msg, prefix,
- err_line_count, affix, err_line_line);
- exit_trouble(ret < 0, __func__, "snprintf");
- if (err_line_exit)
- {
- exit_err(1, err);
- }
- exit_trouble(0 > printf("%s\n", err), __func__, "printf");
- exit_trouble(EOF == fflush(stdout), __func__, "fflush");
- free(err);
- return 1;
-}
-
-
-
-extern char * token_from_line(char * line)
-{
- static char * final_char = NULL;
- static char * limit_char = NULL;
- char * start = limit_char + 1;
- if (line)
- {
- start = line;
- limit_char = start;
- final_char = &(line[strlen(line)]);
- if ('\n' == *(final_char - 1))
- {
- *(--final_char) = '\0';
- }
- }
- if (final_char < start)
- {
- return NULL;
- }
- uint8_t empty = 1;
- uint32_t i;
- for (i = 0; '\0' != start[i]; i++)
- {
- if (' ' != start[i] && '\t' != start[i])
- {
- start = &start[i];
- empty = 0;
- break;
- }
- }
- if (empty)
- {
- return NULL;
- }
- set_token_end(&start, &limit_char);
- return start;
-}
-
-
-
-extern uint8_t parsetest_int(char * string, char type)
-{
- char * err_8 = "Value must represent proper unsigned 8 bit integer.";
- char * err_i = "Value must represent proper signed 16 bit integer.";
- char * err_u = "Value must represent proper unsigned 16 bit integer.";
- char * err_U = "Value must represent proper unsigned 32 bit integer.";
- char * err = ('8' == type) ? err_8 : err_U;
- err = ('i' == type) ? err_i : err;
- err = ('u' == type) ? err_u : err;
- uint8_t ret = err_line(strlen(string) < 1, err);
- uint8_t i;
- uint8_t test;
- for (i = 0; '\0' != string[i]; i++)
- {
- char * err_many = "Value of too many characters.";
- ret = ret + err_line(string[i + 1] && UINT8_MAX == i, err_many);
- test = ( (0 == i && ('-' == string[i] || '+' == string[i]))
- || ('0' <= string[i] && string[i] <= '9'));
- ret = ret + err_line(!test, err);
- }
- ret = ret + err_line( strlen(string) < 2
- && ('-' == string[i] || '+' == string[i]), err);
- test = ( '8' == type
- && ( strlen(string) > 4
- || atoi(string) < 0 || atoi(string) > UINT8_MAX))
- || ( 'i' == type
- && ( strlen(string) > 6
- || atol(string) < INT16_MIN || atol(string) > INT16_MAX))
- || ( 'u' == type
- && ( strlen(string) > 6
- || atoll(string) < 0 || atol(string) > UINT16_MAX))
- || ( 'U' == type
- && ( strlen(string) > 11
- || atoll(string) < 0 || atoll(string) > UINT32_MAX));
- ret = ret + err_line(test, err);
- return ret;
-}
-
-
-
-extern uint8_t parsetest_singlechar(char * string)
-{
- return err_line(1 !=strlen(string),"Value must be single ASCII character.");
-}
-
-
-
-extern uint8_t parse_val(char * token0, char * token1, char * comparand,
- char type, char * element)
-{
- if (!strcmp(token0, comparand))
- {
- if ('s' == type)
- {
- free(* (char **) element);
- * (char **) element = strdup(token1);
- }
- else if ('c' == type)
- {
- if (!parsetest_singlechar(token1))
- {
- *element = (token1)[0];
- }
- }
- else if (!parsetest_int(token1, type))
- {
- if ('8' == type)
- {
- * (uint8_t *) element = atoi(token1);
- }
- else if ('i' == type)
- {
- * (int16_t *) element = atoi(token1);
- }
- else if ('u' == type)
- {
- * (uint16_t *) element = atol(token1);
- }
- else if ('U' == type)
- {
- * (uint32_t *) element = atoll(token1);
- }
- }
- return 1;
- }
- return 0;
-}
projects / plomrogue / blobdiff