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annotate src/vbuf.h @ 165:6194e4a10406 stable-0-6-33

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prep for fedora build
author Carl Byington <carl@five-ten-sg.com>
date Tue, 17 Mar 2009 10:58:09 -0700
parents cda7c812ec01
children 6954d315aaa8
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1 /* vbuf.h - variable length buffer functions
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2 *
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3 * Functions that try to make dealing with buffers easier.
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4 *
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5 * vbuf
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6 *
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7 * vstr
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8 * - should always contain a valid string
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9 *
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10 */
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11
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12 #ifndef VBUF_H
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13 #define VBUF_H
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15 #include "common.h"
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17 #define SZ_MAX 4096
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18 /***************************************************/
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21 // Variable-length buffers
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22 struct varbuf {
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23 size_t dlen; //length of data stored in buffer
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24 size_t blen; //length of buffer
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25 char *buf; //buffer
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26 char *b; //start of stored data
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27 };
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30 // The exact same thing as a varbuf but should always contain at least '\0'
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31 struct varstr {
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32 size_t dlen; //length of data stored in buffer
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33 size_t blen; //length of buffer
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34 char *buf; //buffer
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35 char *b; //start of stored data
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36 };
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38
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39 typedef struct varbuf vbuf;
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40 typedef struct varstr vstr;
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41
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42 #define VBUF_STATIC(x,y) static vbuf *x = NULL; if(!x) x = vballoc(y);
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43 #define VSTR_STATIC(x,y) static vstr *x = NULL; if(!x) x = vsalloc(y);
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45 int skip_nl( char *s ); // returns the width of the newline at s[0]
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46 int find_nl( vstr *vs ); // find newline of type type in b
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47
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48 // vbuf functions
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49 struct varbuf *vballoc( size_t len );
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50 void vbfree( vbuf *vb );
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51 void vbclear( vbuf *vb ); //ditch the data, keep the buffer
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52 void vbresize( vbuf *vb, size_t len );
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53 size_t vbavail( vbuf *vb );
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54 void vbdump( vbuf *vb );
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55 void vbgrow( vbuf *vb, size_t len ); // grow buffer by len bytes, data are preserved
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56 void vbset( vbuf *vb, void *data, size_t len );
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57 void vbskipws( vbuf *vb );
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58 void vbappend( vbuf *vb, void *data, size_t length );
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59 void vbskip( vbuf *vb, size_t skip );
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60 void vboverwrite( vbuf *vbdest, vbuf *vbsrc );
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61
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62 // vstr functions
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63 vstr *vsalloc( size_t len );
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64 char *vsb( vstr *vs );
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65 size_t vslen( vstr *vs ); //strlen
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66 void vsfree( vstr *vs );
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67 void vsset( vstr *vs, char *s ); // Store string s in vb
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68 void vsnset( vstr *vs, char *s, size_t n ); // Store string s in vb
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69 void vsgrow( vstr *vs, size_t len ); // grow buffer by len bytes, data are preserved
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70 size_t vsavail( vstr *vs );
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71 void vscat( vstr *vs, char *str );
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72 void vsncat( vstr *vs, char *str, size_t len );
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73 void vsnprepend( vstr *vs, char *str, size_t len ) ;
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74 void vsskip( vstr *vs, size_t len );
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75 int vscmp( vstr *vs, char *str );
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76 void vsskipws( vstr *vs );
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77 void vs_printf( vstr *vs, char *fmt, ... );
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78 void vs_printfa( vstr *vs, char *fmt, ... );
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79 void vshexdump( vstr *vs, const char *b, size_t start, size_t stop, int ascii );
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80 int vscatprintf( vstr *vs, char *fmt, ... );
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81 void vsvprintf( vstr *vs, char *fmt, va_list ap );
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82 void vstrunc( vstr *vs, size_t off ); // Drop chars [off..dlen]
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83 int vslast( vstr *vs ); // returns the last character stored in a vstr string
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84 void vscharcat( vstr *vs, int ch );
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85
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87 void unicode_init();
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88 void unicode_close();
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89 size_t vb_utf16to8(vbuf *dest, const char *inbuf, int iblen);
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90 size_t vb_utf8to8bit(vbuf *dest, const char *inbuf, int iblen, const char* charset);
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91 size_t vb_8bit2utf8(vbuf *dest, const char *inbuf, int iblen, const char* charset);
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93 int vb_skipline( struct varbuf *vb ); // in: vb->b == "stuff\nmore_stuff"; out: vb->b == "more_stuff"
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96 #endif // VBUF_H