forked from jasonweiyi/XAPI2
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathinirw.cpp
More file actions
529 lines (452 loc) · 10.7 KB
/
inirw.cpp
File metadata and controls
529 lines (452 loc) · 10.7 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
#include "stdafx.h"
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "inirw.h"
#define SIZE_LINE 1024 //每行最大长度
#define SIZE_FILENAME 256 //文件名最大长度
#define min(x, y) (x <= y) ? x : y
typedef enum _ELineType_ {
LINE_IDLE, //未处理行
LINE_ERROR, //错误行
LINE_EMPTY, //空白行或注释行
LINE_SECTION, //节定义行
LINE_VALUE //值定义行
} ELineType ;
static char gFilename[SIZE_FILENAME];
static char *gBuffer;
static int gBuflen;
const char* GetBuffer()
{
return gBuffer;
}
int GetBufferLen()
{
return gBuflen;
}
//去除串首尾空格，原串被改写
static char *StrStrip(char *s)
{
size_t size;
char *p1, *p2;
size = strlen(s);
if (!size)
return s;
p2 = s + size - 1;
while ((p2 >= s) && isspace((unsigned char)*p2))
p2 --;
*(p2 + 1) = '\0';
p1 = s;
while (*p1 && isspace((unsigned char)*p1))
p1 ++;
if (s != p1)
memmove(s, p1, p2 - p1 + 2);
return s;
}
//不区分大小写比较字符串
static int StriCmp(const char *s1, const char *s2)
{
int ch1, ch2;
do
{
ch1 = (unsigned char)*(s1++);
if ((ch1 >= 'A') && (ch1 <= 'Z'))
ch1 += 0x20;
ch2 = (unsigned char)*(s2++);
if ((ch2 >= 'A') && (ch2 <= 'Z'))
ch2 += 0x20;
} while ( ch1 && (ch1 == ch2) );
return(ch1 - ch2);
}
//取一行
//输入：数据区(指针及长度)
//输出：行类型、有效内容串(去首尾空格)、注释首、注释尾、下一行首(行尾与下一行首间为换行符)
// 有效内容位置为[buf, rem1)
static int GetLine(char *buf, int buflen, char *content, char **rem1, char **rem2, char **nextline)
{
char *cont1, *cont2;
int cntblank, cntCR, cntLF; //连续空格、换行符数量
char isQuot1, isQuot2; //引号
int i;
char *p;
//首先断行断注释，支持如下换行符：\r、\n、\r\n、\n\r
cntblank = 0;
cntCR = cntLF = 0;
isQuot1 = isQuot2 = 0;
cont1 = *rem1 = 0;
content[0] = 0;
for (i = 0, p = buf; i < buflen; i ++, p ++)
{
if (*p == 0) {
p ++;
break;
}
//2个CR或LF，行结束
if (cntCR == 2 || cntLF == 2) {
// 这个地方会导致两个LF时前一句读出来的"少一个
//p --; //回溯1
break;
}
//CR或LF各1个之后任意字符，行结束
if (cntCR + cntLF >= 2) {
break;
}
//CR或LF之后出现其它字符，行结束
if ((cntCR || cntLF) && *p != '\r' && *p != '\n')
break;
switch (*p) {
case '\r':
cntCR ++;
break;
case '\n':
cntLF ++;
break;
case '\'':
if (!isQuot2)
isQuot1 = 1 - isQuot1;
break;
case '\"':
if (!isQuot1)
isQuot2 = 1 - isQuot2;
break;
case ';':
case '#':
if (isQuot1 || isQuot2)
break;
if (*rem1 == NULL)
*rem1 = p - cntblank;
break;
default:
if (isspace((unsigned char)*p)) {
cntblank ++;
} else {
cntblank = 0;
if ((*rem1 == NULL) && (cont1 == NULL))
cont1 = p;
}
break;
}
}
*nextline = p;
*rem2 = p - cntCR - cntLF;
if (*rem1 == NULL)
*rem1 = *rem2;
cont2 = *rem1 - cntblank;
if (cont1 == NULL) {
cont1 = cont2;
return LINE_EMPTY;
}
i = (int)(cont2 - cont1);
if (i >= SIZE_LINE)
return LINE_ERROR;
//内容头尾已无空格
memcpy(content, cont1, i);
content[i] = 0;
if (content[0] == '[' && content[i - 1] == ']')
return LINE_SECTION;
if (strchr(content, '=') != NULL)
return LINE_VALUE;
return LINE_ERROR;
}
//取一节section
//输入：节名称
//输出：成功与否、节名称首、节名称尾、节内容首、节内容尾(含换行)、下一节首(节尾与下一节首间为空行或注释行)
static int FindSection(const char *section, char **sect1, char **sect2, char **cont1, char **cont2, char **nextsect)
{
int type;
char content[SIZE_LINE];
char *rem1, *rem2, *nextline = nullptr;
char *p = nullptr;
char *empty = nullptr;
int uselen = 0;
char found = 0;
if (gBuffer == NULL) {
return 0;
}
while (gBuflen - uselen > 0) {
p = gBuffer + uselen;
type = GetLine(p, gBuflen - uselen, content, &rem1, &rem2, &nextline);
uselen += (int)(nextline - p);
if (LINE_SECTION == type) {
if (found || section == NULL) break; //发现另一section
content[strlen(content) - 1] = 0; //去尾部]
StrStrip(content + 1); //去首尾空格
if (StriCmp(content + 1, section) == 0) {
found = 1;
*sect1 = p;
*sect2 = rem1;
*cont1 = nextline;
}
empty = nextline;
} else
if (LINE_VALUE == type) {
if (!found && section == NULL) {
found = 1;
*sect1 = p;
*sect2 = p;
*cont1 = p;
}
empty = nextline;
}
}
if (!found) return 0;
*cont2 = empty;
*nextsect = nextline;
return 1;
}
//从一行取键、值
//输入：内容串(将被改写)
//输出：键串、值串
static void GetKeyValue(char *content, char **key, char **value)
{
char *p;
p = strchr(content, '=');
*p = 0;
StrStrip(content);
StrStrip(p + 1);
*key = content;
*value = p + 1;
}
//释放ini文件所占资源
void iniFileFree()
{
if (gBuffer != NULL) {
free(gBuffer);
gBuffer = 0;
gBuflen = 0;
}
}
//加载ini文件至内存
int iniFileLoad(const char *filename)
{
FILE *file;
int len;
iniFileFree();
if (strlen(filename) >= sizeof(gFilename))
return 0;
strcpy(gFilename, filename);
file = fopen(gFilename, "rb");
if (file == NULL)
return 0;
fseek(file, 0, SEEK_END);
len = ftell(file);
gBuffer = (char*)malloc(len);
if (gBuffer == NULL) {
fclose(file);
return 0;
}
fseek(file, 0, SEEK_SET);
len = fread(gBuffer, 1, len, file);
fclose(file);
gBuflen = len;
return 1;
}
//读取值原始串
static int iniGetValue(const char *section, const char *key, char *value, int maxlen, const char *defvalue)
{
int type;
char content[SIZE_LINE];
char *rem1, *rem2, *nextline;
char *key0, *value0;
char *p;
int uselen = 0;
char found = 0;
int len;
if (gBuffer == NULL || key == NULL) {
if (value != NULL)
value[0] = 0;
return 0;
}
while (gBuflen - uselen > 0) {
p = gBuffer + uselen;
type = GetLine(p, gBuflen - uselen, content, &rem1, &rem2, &nextline);
uselen += (int)(nextline - p);
if (LINE_SECTION == type) {
if (found || section == NULL) break; //发现另一section
content[strlen(content) - 1] = 0; //去尾部]
StrStrip(content + 1); //去首尾空格
if (StriCmp(content + 1, section) == 0) {
found = 1;
}
} else
if (LINE_VALUE == type) {
if (!found && section == NULL) {
found = 1;
}
if (!found)
continue;
GetKeyValue(content, &key0, &value0);
if (StriCmp(key0, key) == 0) {
len = strlen(value0);
if (len == 0) break; //空值视为无效
if (value != NULL) {
len = min(len, maxlen - 1);
strncpy(value, value0, len);
value[len] = 0;
}
return 1;
}
}
}
//未发现键值取缺省
if (value != NULL) {
if (defvalue != NULL) {
len = min(strlen(defvalue), maxlen - 1);
strncpy(value, defvalue, len);
value[len] = 0;
} else {
value[0] = 0;
}
}
return 0;
}
//获取字符串，不带引号
int iniGetString(const char *section, const char *key, char *value, int maxlen, const char *defvalue)
{
int ret;
int len;
ret = iniGetValue(section, key, value, maxlen, defvalue);
if (!ret)
return ret;
//去首尾空格
len = strlen(value);
if (value[0] == '\'' && value[len - 1] == '\'') {
value[len - 1] = 0;
memmove(value, value + 1, len - 1);
} else
if (value[0] == '\"' && value[len - 1] == '\"') {
value[len - 1] = 0;
memmove(value, value + 1, len - 1);
}
return ret;
}
//获取整数值
int iniGetInt(const char *section, const char *key, int defvalue)
{
char valstr[64];
if (iniGetString(section, key, valstr, sizeof(valstr), ""))
return (int)strtol(valstr, NULL, 0);
return defvalue;
}
//获取浮点数
double iniGetDouble(const char *section, const char *key, double defvalue)
{
char valstr[64];
if (iniGetString(section, key, valstr, sizeof(valstr), ""))
return (int)atof(valstr);
return defvalue;
}
//设置字符串：若value为NULL，则删除该key所在行，包括注释
int iniSetString(const char *section, const char *key, const char *value, bool quote)
{
FILE *file;
char *sect1, *sect2, *cont1, *cont2, *nextsect;
char *p;
int len, type;
char content[SIZE_LINE];
char *key0, *value0;
char *rem1, *rem2, *nextline;
// 注了就可以创建文件了
//if (gBuffer == NULL) {
// return 0;
//}
if (FindSection(section, §1, §2, &cont1, &cont2, &nextsect) == 0)
{
//未找到节
//value无效则返回
if (value == NULL)
return 0;
//在文件尾部添加
file = fopen(gFilename, "ab");
if (file == NULL)
return 0;
if (quote)
{
fprintf(file, "\n[%s]\n%s=\"%s\"\n", section, key, value);
}
else
{
fprintf(file, "\n[%s]\n%s=%s\n", section, key, value);
}
fclose(file);
iniFileLoad(gFilename);
return 1;
}
//找到节，则节内查找key
p = cont1;
len = (int)(cont2 - cont1);
while (len > 0) {
type = GetLine(p, len, content, &rem1, &rem2, &nextline);
if (LINE_VALUE == type) {
GetKeyValue(content, &key0, &value0);
if (StriCmp(key0, key) == 0) {
//找到key
file = fopen(gFilename, "wb");
if (file == NULL)
return 0;
len = (int)(p - gBuffer);
fwrite(gBuffer, 1, len, file); //写入key之前部分
if (value == NULL) {
//value无效，删除
len = (int)(nextline - gBuffer); //整行连同注释一并删除
} else {
//value有效，改写
if (quote)
{
fprintf(file, "%s=\"%s\"", key, value);
}
else
{
fprintf(file, "%s=%s", key, value);
}
len = (int)(rem1 - gBuffer); //保留尾部原注释!
}
fwrite(gBuffer + len, 1, gBuflen - len, file); //写入key所在行含注释之后部分
fclose(file);
iniFileLoad(gFilename);
return 1;
}
}
len -= (int)(nextline - p);
p = nextline;
}
//未找到key
//value无效则返回
if (value == NULL)
return 0;
//在文件尾部添加
file = fopen(gFilename, "wb");
if (file == NULL)
return 0;
len = (int)(cont2 - gBuffer);
fwrite(gBuffer, 1, len, file); //写入key之前部分
if (quote)
{
fprintf(file, "%s=\"%s\"\n", key, value);
}
else
{
fprintf(file, "%s=%s\n", key, value);
}
fwrite(gBuffer + len, 1, gBuflen - len, file); //写入key之后部分
fclose(file);
iniFileLoad(gFilename);
return 1;
}
//设置整数值：base取值10、16、8，分别表示10、16、8进制，缺省为10进制
int iniSetInt(const char *section, const char *key, int value, int base)
{
char valstr[64];
switch (base) {
case 16:
sprintf(valstr, "0x%x", value);
return iniSetString(section, key, valstr, false);
case 8:
sprintf(valstr, "0%o", value);
return iniSetString(section, key, valstr, false);
default: //10
sprintf(valstr, "%d", value);
return iniSetString(section, key, valstr, false);
}
}