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1.26 paf 1:
1.15 paf 2: /** @file
1.16 paf 3: Parser: commonly functions.
4:
1.8 paf 5: Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com)
1.16 paf 6:
1.8 paf 7: Author: Alexander Petrosyan <paf@design.ru>(http://design.ru/paf)
1.5 paf 8:
1.31 ! paf 9: $Id: pa_common.C,v 1.30 2001/03/26 10:36:55 paf Exp $
1.1 paf 10: */
11:
1.22 paf 12: #include "pa_config_includes.h"
1.1 paf 13:
1.2 paf 14: #include <fcntl.h>
15: #include <sys/stat.h>
16: #include <io.h>
1.1 paf 17: #include <stdio.h>
1.20 paf 18: #include <errno.h>
19:
1.1 paf 20: #include "pa_common.h"
1.2 paf 21: #include "pa_types.h"
1.4 paf 22: #include "pa_exception.h"
1.14 paf 23: #include "pa_pool.h"
24: #include "pa_globals.h"
25: #include "pa_value.h"
26: #include "pa_hash.h"
27: #include "pa_string.h"
1.1 paf 28:
1.22 paf 29: #if _MSC_VER
1.1 paf 30:
31: int __vsnprintf(char *b, size_t s, const char *f, va_list l) {
32: int r=_vsnprintf(b, --s, f, l);
33: b[s]=0;
34: return r;
35: }
36: int __snprintf(char *b, size_t s, const char *f, ...) {
37: va_list l;
38: va_start(l, f);
39: int r=__vsnprintf(b, s, f, l);
40: va_end(l);
41: return r;
42: }
43:
44: #endif
1.2 paf 45:
1.18 paf 46:
1.28 paf 47: char *file_read_text(Pool& pool, const String& file_spec, bool fail_on_read_problem) {
1.2 paf 48: int f;
49: struct stat finfo;
1.28 paf 50: char *fname=file_spec.cstr();
51: if(!stat(fname,&finfo) &&(f=open(fname,O_RDONLY
1.2 paf 52: #ifdef WIN32
53: |O_TEXT
54: #endif
1.8 paf 55: ))>=0) {
1.2 paf 56: /*if(exclusive)
57: flock(f, LOCK_EX);*/
58:
1.10 paf 59: char *result=(char *)pool.malloc(finfo.st_size+1);
1.2 paf 60: int read_size=read(f,result,finfo.st_size);
61: if(read_size>=0 && read_size<=finfo.st_size)
62: result[read_size]='\0';
63: /*if(exclusive)
64: flock(f, LOCK_UN);*/
65: close(f);
66: return result;//prepare_config(result, remove_empty_lines);
67: }
1.4 paf 68: if(fail_on_read_problem)
1.28 paf 69: PTHROW(0, 0,
70: &file_spec,
1.29 paf 71: "read failed: %s (#%d)", strerror(errno), errno);
1.8 paf 72: return 0;
73: }
74:
1.18 paf 75: void file_write(Pool& pool,
1.28 paf 76: const String& file_spec,
1.18 paf 77: const char *data, size_t size,
1.20 paf 78: bool as_text/*,
79: bool exclusive*/) {
1.28 paf 80: char *fname=file_spec.cstr();
81: int f;
82: if(access(fname, F_OK)!=0) {/*no*/
83: if((f=open(fname,O_WRONLY|O_CREAT|_O_BINARY,0666))>0)
84: close(f);
85: }
86: if(access(fname, R_OK|W_OK)==0) {
87: int mode=O_RDWR
1.18 paf 88: #ifdef WIN32
1.28 paf 89: |O_TRUNC
1.18 paf 90: #endif
1.28 paf 91: ;
92: mode|=as_text?_O_TEXT:_O_BINARY;
93: if((f=open(fname,mode,0666))>=0) {
94: /*if(exclusive)
95: flock(f, LOCK_EX);*/
96:
97: if(size) write(f,data,size);
1.18 paf 98: #ifndef WIN32
1.28 paf 99: ftruncate(f,size);
1.18 paf 100: #endif
1.28 paf 101: /*if(exclusive)
102: flock(f, LOCK_UN);*/
103: close(f);
104: return;
1.18 paf 105: }
106: }
1.28 paf 107: PTHROW(0, 0,
108: &file_spec,
1.29 paf 109: "write failed: %s (#%d)", strerror(errno), errno);
1.30 paf 110: }
111:
112: void file_delete(Pool& pool, const String& file_spec) {
113: if(unlink(file_spec.cstr())!=0)
114: PTHROW(0, 0,
115: &file_spec,
116: "unlink failed: %s (#%d)", strerror(errno), errno);
1.31 ! paf 117: }
! 118:
! 119: bool file_readable(const String& file_spec) {
! 120: return access(file_spec.cstr(), R_OK)==0;
1.18 paf 121: }
122:
1.8 paf 123: char *getrow(char **row_ref, char delim) {
124: char *result=*row_ref;
125: if(result) {
126: *row_ref=strchr(result, delim);
127: if(*row_ref)
128: *((*row_ref)++)=0;
129: else if(!*result)
130: return 0;
131: }
132: return result;
133: }
134:
1.23 paf 135: char *lsplit(char *string, char delim) {
136: if(string) {
137: char *v=strchr(string, delim);
1.8 paf 138: if(v) {
139: *v=0;
140: return v+1;
141: }
142: }
143: return 0;
144: }
145:
146: char *lsplit(char **string_ref, char delim) {
147: char *result=*string_ref;
148: char *next=lsplit(*string_ref, delim);
149: *string_ref=next;
150: return result;
1.9 paf 151: }
152:
153: char *rsplit(char *string, char delim) {
1.18 paf 154: if(string) {
1.9 paf 155: char *v=strrchr(string, delim);
1.18 paf 156: if(v) {
1.9 paf 157: *v=0;
158: return v+1;
159: }
160: }
161: return NULL;
1.10 paf 162: }
163:
164: char *format(Pool& pool, double value, char *fmt) {
165: char *result=(char *)pool.malloc(MAX_NUMBER);
166: if(fmt)
167: if(strpbrk(fmt, "diouxX"))
168: if(strpbrk(fmt, "ouxX"))
1.18 paf 169: snprintf(result, MAX_NUMBER, fmt,(uint)value );
1.10 paf 170: else
1.18 paf 171: snprintf(result, MAX_NUMBER, fmt,(int)value );
1.10 paf 172: else
173: snprintf(result, MAX_NUMBER, fmt, value);
174: else
1.18 paf 175: snprintf(result, MAX_NUMBER, "%d",(int)value);
1.10 paf 176:
177: return result;
1.12 paf 178: }
179:
1.13 paf 180: size_t stdout_write(const char *buf, size_t size) {
1.12 paf 181: #ifdef WIN32
182: do{
183: int chunk_written=fwrite(buf, 1, min(8*0x400, size), stdout);
184: if(chunk_written<=0)
185: break;
186: size-=chunk_written;
187: buf+=chunk_written;
188: } while(size>0);
189:
190: return size;
191: #else
1.13 paf 192: return fwrite(buf, 1, size, stdout);
1.12 paf 193: #endif
1.2 paf 194: }
1.14 paf 195:
196: const char *unescape_chars(Pool& pool, const char *cp, int len) {
197: char *s=(char *)pool.malloc(len + 1);
198: enum EscapeState {
199: EscapeRest,
200: EscapeFirst,
201: EscapeSecond
202: } escapeState=EscapeRest;
203: int escapedValue=0;
204: int srcPos=0;
205: int dstPos=0;
206: while(srcPos < len) {
207: int ch=cp[srcPos];
208: switch(escapeState) {
209: case EscapeRest:
210: if(ch=='%') {
211: escapeState=EscapeFirst;
212: } else if(ch=='+') {
213: s[dstPos++]=' ';
214: } else {
215: s[dstPos++]=ch;
216: }
217: break;
218: case EscapeFirst:
219: escapedValue=hex_value[ch] << 4;
220: escapeState=EscapeSecond;
221: break;
222: case EscapeSecond:
223: escapedValue +=hex_value[ch];
224: s[dstPos++]=escapedValue;
225: escapeState=EscapeRest;
226: break;
227: }
228: srcPos++;
229: }
230: s[dstPos]=0;
231: return s;
232: }
233:
1.17 paf 234: static void append_attribute_subattribute(const Hash::Key& akey, Hash::Val *avalue,
1.14 paf 235: void *info) {
236: if(akey==VALUE_NAME)
237: return;
238:
239: // ...; charset=windows1251
240: String *string=static_cast<String *>(info);
241: string->APPEND_CONST("; ");
1.20 paf 242: string->append(akey, String::UL_HEADER, true);
1.14 paf 243: string->APPEND_CONST("=");
244: string->append(static_cast<Value *>(avalue)->as_string(),
1.20 paf 245: String::UL_HEADER, true);
1.14 paf 246: }
1.20 paf 247: const String& attributed_meaning_to_string(Value& meaning) {
248: String &result=*new(meaning.pool()) String(meaning.pool());
249: if(Hash *hash=meaning.get_hash()) {
1.14 paf 250: // $value(value) $subattribute(subattribute value)
251: if(Value *value=static_cast<Value *>(hash->get(*value_name)))
1.20 paf 252: result.append(value->as_string(), String::UL_HEADER, true);
1.14 paf 253:
1.25 paf 254: hash->for_each(append_attribute_subattribute, &result);
1.14 paf 255: } else // result value
1.20 paf 256: result.append(meaning.as_string(), String::UL_HEADER, true);
1.14 paf 257:
258: return result;
1.24 paf 259: }
260:
261: #ifdef WIN32
262: void back_slashes_to_slashes(char *s) {
263: if(s)
264: for(; *s; s++)
265: if(*s=='\\')
266: *s='/';
267: }
268: #endif