Rev 8793 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 8793 | Rev 9868 | ||
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| - | 1 | #include |
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| 1 | #include |
2 | #include |
| 2 | #include |
3 | #include |
| 3 | #include |
4 | #include |
| 4 | #include |
5 | #include |
| 5 | char *__scanf_buffer = 0; |
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| 6 | - | ||
| 7 | int virtual_getc_con(void *sp, const void *obj) |
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| 8 | // get next chat from string obj, save point is ptr to string char ptr |
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| 9 | { |
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| 10 | int ch; |
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| 11 | const char**spc= (const char**)sp; |
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| 12 | if (!spc) return EOF; // error |
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| 13 | - | ||
| 14 | if (!*spc) *spc = __scanf_buffer; // first call, init savepoint |
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| 15 | - | ||
| 16 | while (!**spc) // need to read more |
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| 17 | { |
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| 18 | if(!gets(__scanf_buffer)) return EOF; |
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| 19 | *spc = __scanf_buffer; |
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| 20 | strcat(__scanf_buffer,"\n"); // imitate delimiter |
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| 21 | } |
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| 22 | if (**spc == 26 || **spc == 3) // ^C ^Z end of scan, clear buffer |
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| 23 | { |
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| 24 | *spc = __scanf_buffer; |
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| 25 | *__scanf_buffer = 0; |
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| 26 | return EOF; // ^C ^Z |
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| 27 | } |
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| 28 | - | ||
| 29 | ch = **spc; (*spc)++ ; |
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| 30 | - | ||
| 31 | //printf("getc '%c'[%d];", ch, ch); |
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| 32 | return ch; |
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| 33 | } |
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| 34 | - | ||
| 35 | void virtual_ungetc_con(void *sp, int c, const void *obj) |
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| 36 | // if can, one step back savepoint in s |
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| 37 | { |
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| 38 | const char**spc= (const char**)sp; |
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| 39 | - | ||
| 40 | if (spc && *spc > __scanf_buffer) (*spc)--; |
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| 41 | //printf("Ungetc '%c'[%d];", c, c); |
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| 42 | } |
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| Line 43... | Line 6... | ||
| 43 | 6 | ||
| 44 | int vscanf ( const char * format, va_list arg ) |
7 | int vscanf(const char* format, va_list arg) |
| - | 8 | { |
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| - | 9 | static char scanf_buffer[STDIO_MAX_MEM]; |
|
| 45 | { |
10 | gets(scanf_buffer); |
| 46 | return format_scan(NULL, format, arg, &virtual_getc_con, &virtual_ungetc_con); |
11 | return vsscanf(scanf_buffer, format, arg); |
| Line 47... | Line 12... | ||
| 47 | }; |
12 | }; |
| 48 | 13 | ||
| 49 | int scanf ( const char * format, ...) |
14 | int scanf(const char* format, ...) |
| 50 | { |
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| 51 | va_list arg; |
15 | { |
| 52 | int n; |
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| 53 | va_start(arg, format); |
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| 54 | - | ||
| 55 | if(__scanf_buffer == NULL) __scanf_buffer = malloc(4096); |
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| 56 | if(__scanf_buffer == NULL) return -3; |
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| 57 | 16 | va_list arg; |
|
| 58 | *__scanf_buffer = 0; |
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| 59 | n = vscanf(format, arg); |
17 | va_start(arg, format); |
| 60 | 18 | int n = vscanf(format, arg); |
|
| 61 | va_end(arg); |
19 | va_end(arg); |
| 62 | return n; |
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| 63 | } |
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