#### 73 lines 2.9 KiB C Raw Blame History

 ```#ifndef FMT_H ``` ```#define FMT_H ``` ``` ``` ```#define FMT_LONG 41 /* enough space to hold -2^127 in decimal, plus \0 */ ``` ```#define FMT_ULONG 40 /* enough space to hold 2^128 - 1 in decimal, plus \0 */ ``` ```#define FMT_8LONG 44 /* enough space to hold 2^128 - 1 in octal, plus \0 */ ``` ```#define FMT_XLONG 33 /* enough space to hold 2^128 - 1 in hexadecimal, plus \0 */ ``` ```#define FMT_LEN ((char *) 0) /* convenient abbreviation */ ``` ``` ``` ```/* The formatting routines do not append \0! ``` ``` * Use them like this: buf[fmt_ulong(buf,number)]=0; */ ``` ``` ``` ```/* convert signed src integer -23 to ASCII '-','2','3', return length. ``` ``` * If dest is not NULL, write result to dest */ ``` ```unsigned int fmt_long(char *dest,signed long src); ``` ``` ``` ```/* convert unsigned src integer 23 to ASCII '2','3', return length. ``` ``` * If dest is not NULL, write result to dest */ ``` ```unsigned int fmt_ulong(char *dest,unsigned long src); ``` ``` ``` ```/* convert unsigned src integer 0x23 to ASCII '2','3', return length. ``` ``` * If dest is not NULL, write result to dest */ ``` ```unsigned int fmt_xlong(char *dest,unsigned long src); ``` ``` ``` ```/* convert unsigned src integer 023 to ASCII '2','3', return length. ``` ``` * If dest is not NULL, write result to dest */ ``` ```unsigned int fmt_8long(char *dest,unsigned long src); ``` ``` ``` ```#define fmt_uint(dest,src) fmt_ulong(dest,src) ``` ```#define fmt_int(dest,src) fmt_long(dest,src) ``` ```#define fmt_xint(dest,src) fmt_xlong(dest,src) ``` ```#define fmt_8int(dest,src) fmt_8long(dest,src) ``` ``` ``` ```/* Like fmt_ulong, but prepend '0' while length is smaller than padto. ``` ``` * Does not truncate! */ ``` ```unsigned int fmt_ulong0(char *,unsigned long src,unsigned int padto); ``` ``` ``` ```#define fmt_uint0(buf,src,padto) fmt_ulong0(buf,src,padto) ``` ``` ``` ```/* convert src double 1.7 to ASCII '1','.','7', return length. ``` ``` * If dest is not NULL, write result to dest */ ``` ```unsigned int fmt_double(char *dest, double d,int max,int prec); ``` ``` ``` ```/* if src is negative, write '-' and return 1. ``` ``` * if src is positive, write '+' and return 1. ``` ``` * otherwise return 0 */ ``` ```unsigned int fmt_plusminus(char *dest,int src); ``` ``` ``` ```/* if src is negative, write '-' and return 1. ``` ``` * otherwise return 0. */ ``` ```unsigned int fmt_minus(char *dest,int src); ``` ``` ``` ```/* copy str to dest until \0 byte, return number of copied bytes. */ ``` ```unsigned int fmt_str(char *dest,const char *src); ``` ``` ``` ```/* copy str to dest until \0 byte or limit bytes copied. ``` ``` * return number of copied bytes. */ ``` ```unsigned int fmt_strn(char *dest,const char *src,unsigned int limit); ``` ``` ``` ```/* "foo" -> " foo" ``` ``` * write padlen-srclen spaces, if that is >= 0. Then copy srclen ``` ``` * characters from src. Truncate only if total length is larger than ``` ``` * maxlen. Return number of characters written. */ ``` ```unsigned int fmt_pad(char* dest,const char* src,unsigned int srclen,unsigned int padlen,unsigned int maxlen); ``` ``` ``` ```/* "foo" -> "foo " ``` ``` * append padlen-srclen spaces after dest, if that is >= 0. Truncate ``` ``` * only if total length is larger than maxlen. Return number of ``` ``` * characters written. */ ``` ```unsigned int fmt_fill(char* dest,unsigned int srclen,unsigned int padlen,unsigned int maxlen); ``` ``` ``` ```#endif ```