+++ /dev/null
-/*
- * matdb-dotcode: reads in Craig's Dotcode materials database.
-
-
-
- Copyright (C) 2008 Joseph Pingenot
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU Affero General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Affero General Public License for more details.
-
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-*/
-
-#include <matdb-dotcode.h>
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <strings.h>
-#include <stdlib.h>
-
-#ifdef DEBUG
-#undef DEBUG
-#endif
-#ifdef DEBUG_2
-#undef DEBUG_2
-#endif
-
-/*Functions to be used by the hash.*/
-static void destroy_string(gpointer data) {
- free((char*)data);
-}
-static void destroy_double(gpointer data){
- free((double*)data);
-}
-static void destroy_inner_bowhash(gpointer data) {
- g_hash_table_unref(data);
-}
-
-int insert_into_matdb(struct matdb *mdb, struct matdb_material **mat, struct matdb_bowing **bow) {
- if((*mat) != NULL) {
-#ifdef DEBUG
- fprintf(stderr, "inserting material %s\n", (*mat)->name->str);
-#endif
- g_hash_table_insert(mdb->materials, (gpointer)g_strdup((*mat)->name->str), (gpointer)(*mat));
- (*mat) = NULL;
- }
- if((*bow) != NULL) {
-#ifdef DEBUG
- fprintf(stderr, "inserting bowing %s:%s\n", (*bow)->from->str, (*bow)->to->str);
-#endif
- /*Inner table*/
- GHashTable *it;
- if((it=g_hash_table_lookup(mdb->bowings, (*bow)->from->str)) == NULL) {
- if((it = g_hash_table_new_full(&g_str_hash, &g_str_equal, &destroy_string, &destroy_inner_bowhash)) == NULL) {
- (*bow) = NULL;
- return 1;
- }
- g_hash_table_insert(mdb->bowings, (*bow)->from->str, it);
- #ifdef DEBUG
- fprintf(stderr, "Got new hash table (from=%s)\n", (*bow)->from->str);
- #endif
- }
- g_hash_table_insert(it, (gpointer)g_strdup((*bow)->to->str), (gpointer)(*bow));
- (*bow) = NULL;
- }
- return 0;
-}
-
-/*Removes leading and trailing whitespace, comments, and reduces
- redundant whitespace down to one tab, makes an empty line an empty string.*/
-static void prettify_line(char *line) {
- register char *look;
- register char *write;
- register int in_whitespace;
- register int leading_whitespace;
- for(look=write=line, in_whitespace=0, leading_whitespace=1; *look != '\0'; look++) {
-#ifdef DEBUG_2
- fprintf(stderr, " look=%d(%c) write=%d(%c) in_whitespace=%d leading_whitespace=%d: ", (look-line), *look, (write-line), *write, in_whitespace, leading_whitespace);
-#endif
- if(*look == '#') {
-#ifdef DEBUG_2
- fprintf(stderr, "comment\n");
-#endif
- *write = '\0';
- break;
- }
- switch(*look) {
- case ' ':
- case '\n':
- case '\t':
-#ifdef DEBUG_2
- fprintf(stderr, "whitespace\n");
-#endif
- if((!leading_whitespace) && (!in_whitespace)) *write++ = '\t';
- in_whitespace=1;
- break;
- default:
-#ifdef DEBUG_2
- fprintf(stderr, "default\n");
-#endif
- *write++ = *look;
- in_whitespace=leading_whitespace=0;
- }
- }
- *write='\0';
- for(look=write=line; *look != '\0'; look++) {
- switch(*look) {
- case ' ':
- case '\n':
- case '\t':
- if(*(look+1) == '\0') {
- *look = '\0';
- }
- }
- }
-}
-
-/*Error values:
- * 0: success
- * 1: failure malloc'ing / initializing mdb struct
- * 2: failure opening file.
- * 4: failure reading line.
- * 8: warning reading line: no tab separator (line parsing error)
- * 16: warning reading line: bad section declaration
- * 32: warning reading line: unable to allocate material struct.
- * 64: warning reading line: ignored line (unallocated material struct)
- * 128: warning reading line: unable to allocate bowing struct
- * 256: warning reading line: ignored line (unallocated bowing struct)
- * 512: warning reading file: improper section detected (programming
- * error)
- *1024: warning reading file: no : separator in bowing materials
- * description.
- *2048: warning reading file: unable to read numeric value for property.
- */
-struct matdb* read_matdb_dotcode(const GString *name, int* err) {
-#ifdef DEBUG_2
- fprintf(stderr, "in read_matdb_dotcode(%s, %d)\n", name->str, *err);
-#endif
- *err=0;
- struct matdb *mdb = (struct matdb*)malloc(sizeof(struct matdb));
- if(mdb == NULL) {*err = 1; return NULL;}
-
- double *value;
- if((mdb->materials = g_hash_table_new_full(&g_str_hash, &g_str_equal, &destroy_string, &destroy_material_gpointer)) == NULL) {
- *err = 1;
- free(mdb);
- return NULL;
- }
- if((mdb->bowings = g_hash_table_new_full(&g_str_hash, &g_str_equal, &destroy_string, &destroy_bowing_gpointer)) == NULL) {
- *err = 1;
- g_hash_table_unref(mdb->materials);
- free(mdb);
- return NULL;
- }
- struct matdb_material *mat = NULL;
- struct matdb_bowing *bow = NULL;
- /*Valid sections:
- * 0 (no/global section)
- * 1 (material)
- * 2 (bow)
- */
- int section=0;
- int n;
- char *line;
- FILE *infile = fopen(name->str, "r");
- if(infile == NULL) {
- g_hash_table_unref(mdb->materials);
- g_hash_table_unref(mdb->bowings);
- free(mdb);
- *err=2;
- return NULL;
-#ifdef DEBUG_2
- }else{
- fprintf(stderr, "infile=%x\n", (unsigned int)infile);
-#endif
- }
- int val;
- while(!feof(infile)) {
-#ifdef DEBUG
- fprintf(stderr, "mat=%x(%s), bow=%x(%s:%s)\n", (unsigned int)mat, mat?mat->name->str:"", (unsigned int)bow, bow?bow->from->str:"", bow?bow->to->str:"");
-#endif
- line=NULL;
- if((val = getline(&line, &n, infile)) == -1) {
-#ifdef DEBUG_2
- fprintf(stderr, "getline returned %d\n", val);
-#endif
- if(!feof(infile)) *err = 4;
- //fclose(infile);
- break;
- }
-#ifdef DEBUG_2
- fprintf(stderr, "line=(%s)\n", line);
-#endif
- prettify_line(line);
-#ifdef DEBUG
- fprintf(stderr, "%d: prettified line=(%s)\n", section, line);
-#endif
- if(*line == '\0') {
- free(line);
- continue;
- }
- char *i = index(line, '\t');
- if(i == NULL) {
- *err &= 8;
- }
- *i++ = '\0';
- /*At this point, we have line which stores the first word on the
- line, and i which stores the second word on the line.
- */
- char *to;
- GHashTable *ht;
-#ifdef DEBUG_2
- fprintf(stderr, "part_a=(%s) part_b=(%s)\n", line, i);
-#endif
- /*If we have a material or bowing underway, save it off*/
- if(strcasecmp(line, "material") == 0) {
- insert_into_matdb(mdb, &mat, &bow);
- if((mat = (struct matdb_material*)malloc(sizeof(struct matdb_material))) == NULL) {
- *err &= 32;
- }
- if((mat->name = g_string_new(i)) == NULL) {
- *err &= 32;
- free(mat);
- section=0;
- continue;
- }
- if((mat->properties = g_hash_table_new_full(&g_str_hash, &g_str_equal, &destroy_string, &destroy_double)) == NULL) {
- *err &= 32;
- g_string_free(mat->name, TRUE);
- free(bow);
- section=0;
- continue;
- }
-#ifdef DEBUG_2
- fprintf(stderr, "new material (%s):\n", i);
-#endif
- section=1;
- }else if(strcasecmp(line, "bow") == 0) {
- insert_into_matdb(mdb, &mat, &bow);
- if((bow = (struct matdb_bowing*)malloc(sizeof(struct matdb_bowing))) == NULL) {
- *err &= 128;
- }
- if((to = index(i, ':')) == NULL) {
- *err &= 1024;
- free(bow);
- section=0;
- continue;
- }
- *to++ = '\0';
- /*Same trick as before, but i now stores the from material,
- and to the to material
- */
- if((bow->from = g_string_new(i)) == NULL) {
- *err &= 128;
- free(bow);
- section=0;
- continue;
- }
- if((bow->to = g_string_new(to)) == NULL) {
- *err &= 128;
- g_string_free(bow->from, TRUE);
- free(bow);
- section=0;
- continue;
- }
- if((bow->properties = g_hash_table_new_full(&g_str_hash, &g_str_equal, &destroy_string, &destroy_double)) == NULL) {
- *err &= 128;
- g_string_free(bow->to, TRUE);
- g_string_free(bow->from, TRUE);
- free(bow);
- section=0;
- continue;
- }
-#ifdef DEBUG_2
- fprintf(stderr, "new bowing (%s:%s):\n", i, to);
-#endif
- section=2;
- }else{
- #ifdef DEBUG
- fprintf(stderr, "\t%d/%s\t", section, line);
- #endif
- /*Process a property.*/
- switch(section) {
- case 1:
- #ifdef DEBUG
- fprintf(stderr, "(1)\t");
- #endif
- ht = mat->properties;
- break;
- case 2:
- #ifdef DEBUG
- fprintf(stderr, "(2)\t");
- #endif
- ht = bow->properties;
- break;
- default:
- #ifdef DEBUG
- fprintf(stderr, "(default)\t");
- #endif
- *err &= 16;
- section = 0;
- }
- if(section == 0) {
- #ifdef DEBUG
- fprintf(stderr, "section was 0\n");
- #endif
- continue;
- }
- if((value = (double*)malloc(sizeof(double))) == NULL) {
- *err &= 2048;
- #ifdef DEBUG
- fprintf(stderr, "malloc of value failed\n");
- #endif
- continue;
- }
- int num;
- if((num=sscanf(i, " %lg", value)) != 1) {
- *err &= 2048;
- free(value);
- #ifdef DEBUG
- fprintf(stderr, "bad sscanf to get value (scanned \"%s\", returned %d)\n", i, num);
- #endif
- continue;
- }
- g_hash_table_insert(ht, g_strdup(line), value);
-#ifdef DEBUG
- fprintf(stderr, "%g(%s)\n", *value, line);
-#endif
- }
- free(line);
- line=i=to=NULL;
- value=NULL;
- }
- fclose(infile);
- insert_into_matdb(mdb, &mat, &bow);
- return mdb;
-}
-
projects / scdataviz / blobdiff