fmtdef.h (4178B) download
1/* Copyright (c) 2002-2006 Lucent Technologies; see LICENSE */
2
3/*
4 * dofmt -- format to a buffer
5 * the number of characters formatted is returned,
6 * or -1 if there was an error.
7 * if the buffer is ever filled, flush is called.
8 * it should reset the buffer and return whether formatting should continue.
9 */
10
11typedef int (*Fmts)(Fmt*);
12
13typedef struct Quoteinfo Quoteinfo;
14struct Quoteinfo {
15 int quoted; /* if set, string must be quoted */
16 int nrunesin; /* number of input runes that can be accepted */
17 int nbytesin; /* number of input bytes that can be accepted */
18 int nrunesout; /* number of runes that will be generated */
19 int nbytesout; /* number of bytes that will be generated */
20};
21
22/* Edit .+1,/^$/ |cfn |grep -v static | grep __ */
23double __Inf(int sign);
24double __NaN(void);
25int __badfmt(Fmt* f);
26int __charfmt(Fmt* f);
27int __countfmt(Fmt* f);
28int __efgfmt(Fmt* fmt);
29int __errfmt(Fmt* f);
30int __flagfmt(Fmt* f);
31int __fmtFdFlush(Fmt* f);
32int __fmtcpy(Fmt* f, const void* vm, int n, int sz);
33void* __fmtdispatch(Fmt* f, void* fmt, int isrunes);
34void* __fmtflush(Fmt* f, void* t, int len);
35int __fmtpad(Fmt* f, int n);
36double __fmtpow10(int n);
37int __fmtrcpy(Fmt* f, const void* vm, int n);
38void __fmtlock(void);
39void __fmtunlock(void);
40int __ifmt(Fmt* f);
41int __isInf(double d, int sign);
42int __isNaN(double d);
43int __needsep(int*, char**);
44int __needsquotes(char* s, int* quotelenp);
45int __percentfmt(Fmt* f);
46void __quotesetup(char* s, Rune* r, int nin, int nout, Quoteinfo* q, int sharp, int runesout);
47int __quotestrfmt(int runesin, Fmt* f);
48int __rfmtpad(Fmt* f, int n);
49int __runefmt(Fmt* f);
50int __runeneedsquotes(Rune* r, int* quotelenp);
51int __runesfmt(Fmt* f);
52int __strfmt(Fmt* f);
53
54#define FMTCHAR(f, t, s, c) \
55 do { \
56 if (t + 1 > (char*) s) { \
57 t = (char*) __fmtflush(f, t, 1); \
58 if (t != nil) \
59 s = (char*) f->stop; \
60 else \
61 return -1; \
62 } \
63 *t++ = c; \
64 } while (0)
65
66#define FMTRCHAR(f, t, s, c) \
67 do { \
68 if (t + 1 > (Rune*) s) { \
69 t = (Rune*) __fmtflush(f, t, sizeof(Rune)); \
70 if (t != nil) \
71 s = (Rune*) f->stop; \
72 else \
73 return -1; \
74 } \
75 *t++ = c; \
76 } while (0)
77
78#define FMTRUNE(f, t, s, r) \
79 do { \
80 Rune _rune; \
81 int _runelen; \
82 if (t + UTFmax > (char*) s && t + (_runelen = runelen(r)) > (char*) s) { \
83 t = (char*) __fmtflush(f, t, _runelen); \
84 if (t != nil) \
85 s = (char*) f->stop; \
86 else \
87 return -1; \
88 } \
89 if (r < Runeself) \
90 *t++ = r; \
91 else { \
92 _rune = r; \
93 t += runetochar(t, &_rune); \
94 } \
95 } while (0)
96
97#ifdef va_copy
98# define VA_COPY(a, b) va_copy(a, b)
99# define VA_END(a) va_end(a)
100#else
101# define VA_COPY(a, b) (a) = (b)
102# define VA_END(a)
103#endif