20414715417

Committed 21 Dec 2025 07:27PM UTC coverage: 92.603% (+0.001%) from 92.602%

Build # 20414715417

Build Type

push

github

Committed by

nickg

Commit Message

Switch GitHub Actions tests to MSYS2 clang64 environment

Run Details

75654 of 81697 relevant lines covered (92.6%)

463841.41 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

94.66

/src/printf.c

//
//  Copyright (C) 2025  Nick Gasson
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
//

#include "util.h"
#include "ident.h"
#include "printf.h"
#include "thread.h"
#include "type.h"

#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>

#define ANSI_RESET      0
#define ANSI_BOLD       1
#define ANSI_FG_BLACK   30
#define ANSI_FG_RED     31
#define ANSI_FG_GREEN   32
#define ANSI_FG_YELLOW  33
#define ANSI_FG_BLUE    34
#define ANSI_FG_MAGENTA 35
#define ANSI_FG_CYAN    36
#define ANSI_FG_WHITE   37

#define MAX_ARGS 20

typedef struct _printf_state printf_state_t;
typedef struct _printf_arg printf_arg_t;

typedef union {
   long long  ll;
   long       l;
   size_t     z;
   double     f;
   int        i;
   void      *p;
} printf_value_t;

typedef int (*fmt_fn_t)(ostream_t *, printf_state_t *, printf_arg_t *);

typedef struct _printf_arg {
   const char     *start;
   size_t          len;
   fmt_fn_t        fn;
   printf_value_t  value;
   int             precision;
} printf_arg_t;

typedef struct _printf_state {
   printf_arg_t args[MAX_ARGS];
   unsigned     nargs;
   unsigned     pos;
} printf_state_t;

typedef struct {
   const char *name;
   int         value;
} color_escape_t;

static const color_escape_t escapes[] = {
   { "",        ANSI_RESET },
   { "bold",    ANSI_BOLD },
   { "black",   ANSI_FG_BLACK },
   { "red",     ANSI_FG_RED },
   { "green",   ANSI_FG_GREEN },
   { "yellow",  ANSI_FG_YELLOW },
   { "blue",    ANSI_FG_BLUE },
   { "magenta", ANSI_FG_MAGENTA },
   { "cyan",    ANSI_FG_CYAN },
   { "white",   ANSI_FG_WHITE },
};

static int printf_interpret(ostream_t *os, printf_state_t *state,
                            const char *fmt, const char *end);

int ostream_write(ostream_t *os, const char *buf, size_t len)
{
   (*os->callback)(buf, len, os->context);
   return len;
}

int ostream_putc(ostream_t *os, char ch)
{
   char buf[1] = { ch };
   return ostream_write(os, buf, 1);
}

int ostream_puts(ostream_t *os, const char *str)
{
   return ostream_write(os, str, strlen(str));
}

static int format_ident(ostream_t *os, printf_state_t *state, printf_arg_t *arg)
{
   ident_t id = arg->value.p;
   return ostream_write(os, istr(id), ident_len(id));
}

static int format_ident_toupper(ostream_t *os, printf_state_t *state,
                                printf_arg_t *arg)
{
   ident_t id = arg->value.p;
   size_t len = ident_len(id);
   const char *str = istr(id);
   int nchars = 0;
   char chunk[32];

   for (int i = 0; i < len; i += sizeof(chunk)) {
      const int tocopy = MIN(sizeof(chunk), len - i);
      for (int j = 0; j < tocopy; j++)
         chunk[j] = toupper_iso88591(str[i + j]);

      nchars += ostream_write(os, chunk, tocopy);
   }

   return nchars;
}

static int format_type(ostream_t *os, printf_state_t *state, printf_arg_t *arg)
{
   type_t type = arg->value.p;

   // Print a fully qualified name if there is another type in the
   // argument list with the same simple name

   for (int i = 0; i < state->nargs; i++) {
      const printf_arg_t *other = &(state->args[i]);
      if (other != arg && other->fn == format_type)
         return ostream_puts(os, type_pp2(type, other->value.p));
   }

   return ostream_puts(os, type_pp(type));
}

static int delegate(ostream_t *os, printf_state_t *s, printf_arg_t *arg, ...)
{
   char spec[32];
   assert(arg->len + 1 < sizeof(spec));
   memcpy(spec, arg->start, arg->len);
   spec[arg->len] = '\0';

   va_list ap, ap2;
   va_start(ap, arg);
   va_copy(ap2, ap);

   char small[64];
   int req = vsnprintf(small, sizeof(small), spec, ap);

   if (req + 1 > sizeof(small)) {
      char *large = xmalloc(req + 1);
      vsnprintf(large, req + 1, arg->start, ap2);
      ostream_write(os, large, req);
      free(large);
   }
   else
      ostream_write(os, small, req);

   va_end(ap);
   va_end(ap2);
   return req;
}

static fmt_fn_t get_pointer_formatter(char ch)
{
   switch (ch) {
   case 'i': return format_ident;
   case 'I': return format_ident_toupper;
   case 'T': return format_type;
   default: return NULL;
   }
}

static int ansi_escape(ostream_t *os, printf_state_t *state, const char **fmt)
{
   bool has_format = false;
   const char *start = *fmt;
   do {
      has_format |= (**fmt == '%');
      (*fmt)++;
   } while (**fmt != '\0' && **fmt != '$');

   if (**fmt == '\0')
      return ostream_write(os, start, *fmt - start);

   const char *end = *fmt;
   (*fmt)++;   // Advance past final '$'

   size_t len = len = *fmt - start - 2;
   const char *e = e = start + 1;
   LOCAL_TEXT_BUF tb = NULL;

   if (has_format) {
      // Expand any embedded formatting inside the ANSI escape
      tb = tb_new();

      ostream_t aos = {
         tb_ostream_write,
         tb,
         os->charset,
         false,
      };

      printf_interpret(&aos, state, start + 1, end);

      e = tb_get(tb);
      len = tb_len(tb);
   }

   bool bold;
   if ((bold = (*e == '!')))
      ++e, --len;

   bool bright;
   if ((bright = (*e == '+')))
      ++e, --len;

   if (*e == '#') {
      char *eptr;
      int code = strtoul(e + 1, &eptr, 10);
      if (eptr == e + len) {
         char buf[16];
         if (bold)
            checked_sprintf(buf, sizeof(buf), "\033[1;38;5;%dm", code);
         else
            checked_sprintf(buf, sizeof(buf), "\033[38;5;%dm", code);

         if (os->terminal)
            ostream_puts(os, buf);

         return 0;
      }
   }

   if (strncmp(e, "link:", 5) == 0) {
      const char *bel = strchr(e, '\07');

#ifndef __MINGW32__    // Winpty doesn't recognise these
      if (os->terminal) {
         ostream_puts(os, "\033]8;;");
         ostream_write(os, e + 5, len - 5);
         ostream_puts(os, "\033]8;;\07");
         return e + len - bel - 1;
      }
#endif

      return ostream_write(os, bel + 1, e + len - bel - 1);
   }

   for (int i = 0; i < ARRAY_LEN(escapes); i++) {
      if (strncmp(e, escapes[i].name, len) == 0) {
         int code = escapes[i].value + (bright ? 60 : 0);
         char buf[16];
         if (bold)
            checked_sprintf(buf, sizeof(buf), "\033[1;%dm", code);
         else
            checked_sprintf(buf, sizeof(buf), "\033[%dm", code);

         if (os->terminal)
            ostream_puts(os, buf);

         return 0;
      }
   }

   return ostream_write(os, start, *fmt - start);
}

static int format_z(ostream_t *os, printf_state_t *s, printf_arg_t *arg)
{
   assert(arg->precision == INT_MIN);
   return delegate(os, s, arg, arg->value.z);
}

static int format_ll(ostream_t *os, printf_state_t *s, printf_arg_t *arg)
{
   if (arg->precision != INT_MIN)
      return delegate(os, s, arg, arg->precision, arg->value.ll);
   else
      return delegate(os, s, arg, arg->value.ll);
}

static int format_l(ostream_t *os, printf_state_t *s, printf_arg_t *arg)
{
   if (arg->precision != INT_MIN)
      return delegate(os, s, arg, arg->precision, arg->value.l);
   else
      return delegate(os, s, arg, arg->value.l);
}

static int format_i(ostream_t *os, printf_state_t *s, printf_arg_t *arg)
{
   if (arg->precision != INT_MIN)
      return delegate(os, s, arg, arg->precision, arg->value.i);
   else
      return delegate(os, s, arg, arg->value.i);
}

static int format_f(ostream_t *os, printf_state_t *s, printf_arg_t *arg)
{
   if (arg->precision != INT_MIN)
      return delegate(os, s, arg, arg->precision, arg->value.f);
   else
      return delegate(os, s, arg, arg->value.f);
}

static int format_s(ostream_t *os, printf_state_t *s, printf_arg_t *arg)
{
   if (arg->precision != INT_MIN)
      return delegate(os, s, arg, arg->precision, arg->value.p);
   else
      return delegate(os, s, arg, arg->value.p);
}

static int format_p(ostream_t *os, printf_state_t *s, printf_arg_t *arg)
{
   return delegate(os, s, arg, arg->value.p);
}

static int printf_interpret(ostream_t *os, printf_state_t *state,
                            const char *fmt, const char *end)
{
   int nchars = 0;
   for (const char *p = fmt;;) {
      const char *start = p;
      while (p < end && *p != '%' && *p != '$')
         p++;

      if (start < p)
         nchars += ostream_write(os, start, p - start);

      if (p == end)
         return nchars;
      else if (*p == '$') {
         nchars += ansi_escape(os, state, &p);
         continue;
      }
      else if (*p == '%' && *(p + 1) == '%') {
         nchars += ostream_write(os, "%", 1);
         p += 2;
         continue;
      }

      assert(state->pos < state->nargs);

      printf_arg_t *arg = &(state->args[state->pos]);
      nchars += (*arg->fn)(os, state, arg);
      p += arg->len;

      state->pos++;
   }
}

int nvc_vfprintf(ostream_t *os, const char *fmt, va_list ap)
{
   printf_state_t state = {};

   const char *end = NULL;
   for (const char *p = fmt;;) {
      while (*p != '\0' && *p != '%')
         p++;

      if (*p == '\0') {
         end = p;
         break;
      }

      printf_arg_t arg = { .start = p, .precision = INT_MIN };
      bool z_mod = false;
      int l_mod = 0;
   again:
      switch (*++p) {
      case 'l':
         l_mod++;
         goto again;
      case 'z':
         z_mod = true;
         goto again;
      case '-':
      case '+':
      case '.':
      case '0'...'9':
         goto again;
      case '*':
         arg.precision = va_arg(ap, int);
         goto again;
      case 'd':
      case 'i':
      case 'x':
      case 'u':
         if (z_mod) {
            arg.value.z = va_arg(ap, size_t);
            arg.fn = format_z;
         }
         else if (l_mod >= 2) {
            arg.value.ll = va_arg(ap, long long);
            arg.fn = format_ll;
         }
         else if (l_mod == 1) {
            arg.value.l = va_arg(ap, long);
            arg.fn = format_l;
         }
         else {
            arg.value.i = va_arg(ap, int);
            arg.fn = format_i;
         }
         break;
      case 'c':
         arg.value.i = va_arg(ap, int);
         arg.fn = format_i;
         break;
      case 'e':
      case 'f':
      case 'g':
         arg.value.f = va_arg(ap, double);
         arg.fn = format_f;
         break;
      case 's':
         arg.value.p = va_arg(ap, char *);
         arg.fn = format_s;
         break;
      case 'p':
         arg.value.p = va_arg(ap, void *);
         if ((arg.fn = get_pointer_formatter(p[1])))
            p++;
         else
            arg.fn = format_p;
         break;
      case '%':
         p++;
         continue;
      default:
         fatal_trace("unhandled character '%c' in format", *p);
      }

      arg.len = ++p - arg.start;

      if (state.nargs == MAX_ARGS)
         fatal_trace("maximum of %d printf arguments supported", MAX_ARGS);
      else
         state.args[state.nargs++] = arg;
   }

   return printf_interpret(os, &state, fmt, end);
}

int nvc_vprintf(const char *fmt, va_list ap)
{
   return nvc_vfprintf(nvc_stdout(), fmt, ap);
}

int nvc_printf(const char *fmt, ...)
{
   va_list ap;
   va_start(ap, fmt);
   const int nchars = nvc_vprintf(fmt, ap);
   va_end(ap);
   return nchars;
}

int nvc_fprintf(ostream_t *os, const char *fmt, ...)
{
   va_list ap;
   va_start(ap, fmt);
   const int nchars = nvc_vfprintf(os, fmt, ap);
   va_end(ap);
   return nchars;
}

void stdio_ostream_write(const char *buf, size_t len, void *ctx)
{
   FILE *f = ctx;
   fwrite(buf, len, 1, f);
}

static void init_terminal_ostream(ostream_t *os, FILE *f)
{
   os->callback = stdio_ostream_write;
   os->context = f;

   if (isatty(fileno(f))) {
      os->charset = utf8_terminal() ? CHARSET_UTF8 : CHARSET_ISO88591;
      os->terminal = color_terminal();
   }
   else {
      os->charset = CHARSET_ISO88591;
      os->terminal = false;
   }
}

ostream_t *nvc_stdout(void)
{
   static ostream_t os;
   INIT_ONCE(init_terminal_ostream(&os, stdout));
   return &os;
}

ostream_t *nvc_stderr(void)
{
   static ostream_t os;
   INIT_ONCE(init_terminal_ostream(&os, stderr));
   return &os;
}

char *color_asprintf(const char *fmt, ...)
{
   LOCAL_TEXT_BUF tb = tb_new();
   ostream_t os = { tb_ostream_write, tb, CHARSET_ISO88591, color_terminal() };

   va_list ap;
   va_start(ap, fmt);
   nvc_vfprintf(&os, fmt, ap);
   va_end(ap);

   return tb_claim(tb);
}

1	//
2	// Copyright (C) 2025 Nick Gasson
3	//
4	// This program is free software: you can redistribute it and/or modify
5	// it under the terms of the GNU General Public License as published by
6	// the Free Software Foundation, either version 3 of the License, or
7	// (at your option) any later version.
8	//
9	// This program is distributed in the hope that it will be useful,
10	// but WITHOUT ANY WARRANTY; without even the implied warranty of
11	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12	// GNU General Public License for more details.
13	//
14	// You should have received a copy of the GNU General Public License
15	// along with this program. If not, see <http://www.gnu.org/licenses/>.
16	//
17
18	#include "util.h"
19	#include "ident.h"
20	#include "printf.h"
21	#include "thread.h"
22	#include "type.h"
23
24	#include <assert.h>
25	#include <stdio.h>
26	#include <string.h>
27	#include <stdlib.h>
28	#include <unistd.h>
29	#include <limits.h>
30
31	#define ANSI_RESET 0
32	#define ANSI_BOLD 1
33	#define ANSI_FG_BLACK 30
34	#define ANSI_FG_RED 31
35	#define ANSI_FG_GREEN 32
36	#define ANSI_FG_YELLOW 33
37	#define ANSI_FG_BLUE 34
38	#define ANSI_FG_MAGENTA 35
39	#define ANSI_FG_CYAN 36
40	#define ANSI_FG_WHITE 37
41
42	#define MAX_ARGS 20
43
44	typedef struct _printf_state printf_state_t;
45	typedef struct _printf_arg printf_arg_t;
46
47	typedef union {
48	long long ll;
49	long l;
50	size_t z;
51	double f;
52	int i;
53	void *p;
54	} printf_value_t;
55
56	typedef int (fmt_fn_t)(ostream_t , printf_state_t , printf_arg_t );
57
58	typedef struct _printf_arg {
59	const char *start;
60	size_t len;
61	fmt_fn_t fn;
62	printf_value_t value;
63	int precision;
64	} printf_arg_t;
65
66	typedef struct _printf_state {
67	printf_arg_t args[MAX_ARGS];
68	unsigned nargs;
69	unsigned pos;
70	} printf_state_t;
71
72	typedef struct {
73	const char *name;
74	int value;
75	} color_escape_t;
76
77	static const color_escape_t escapes[] = {
78	{ "", ANSI_RESET },
79	{ "bold", ANSI_BOLD },
80	{ "black", ANSI_FG_BLACK },
81	{ "red", ANSI_FG_RED },
82	{ "green", ANSI_FG_GREEN },
83	{ "yellow", ANSI_FG_YELLOW },
84	{ "blue", ANSI_FG_BLUE },
85	{ "magenta", ANSI_FG_MAGENTA },
86	{ "cyan", ANSI_FG_CYAN },
87	{ "white", ANSI_FG_WHITE },
88	};
89
90	static int printf_interpret(ostream_t os, printf_state_t state,
91	const char fmt, const char end);
92
93	int ostream_write(ostream_t os, const char buf, size_t len)	1,521,617✔
94	{
95	(*os->callback)(buf, len, os->context);	1,521,617✔
96	return len;	1,521,617✔
97	}
98
99	int ostream_putc(ostream_t *os, char ch)	597,057✔
100	{
101	char buf[1] = { ch };	597,057✔
102	return ostream_write(os, buf, 1);	597,057✔
103	}
104
105	int ostream_puts(ostream_t os, const char str)	7,187✔
106	{
107	return ostream_write(os, str, strlen(str));	7,187✔
108	}
109
110	static int format_ident(ostream_t os, printf_state_t state, printf_arg_t *arg)	29✔
111	{
112	ident_t id = arg->value.p;	29✔
113	return ostream_write(os, istr(id), ident_len(id));	29✔
114	}
115
116	static int format_ident_toupper(ostream_t os, printf_state_t state,	160✔
117	printf_arg_t *arg)
118	{
119	ident_t id = arg->value.p;	160✔
120	size_t len = ident_len(id);	160✔
121	const char *str = istr(id);	160✔
122	int nchars = 0;	160✔
123	char chunk[32];	160✔
124
125	for (int i = 0; i < len; i += sizeof(chunk)) {	320✔
126	const int tocopy = MIN(sizeof(chunk), len - i);	160✔
127	for (int j = 0; j < tocopy; j++)	645✔
128	chunk[j] = toupper_iso88591(str[i + j]);	485✔
129
130	nchars += ostream_write(os, chunk, tocopy);	160✔
131	}
132
133	return nchars;	160✔
134	}
135
136	static int format_type(ostream_t os, printf_state_t state, printf_arg_t *arg)	201✔
137	{
138	type_t type = arg->value.p;	201✔
139
140	// Print a fully qualified name if there is another type in the
141	// argument list with the same simple name
142
143	for (int i = 0; i < state->nargs; i++) {	381✔
144	const printf_arg_t *other = &(state->args[i]);	314✔
145	if (other != arg && other->fn == format_type)	314✔
146	return ostream_puts(os, type_pp2(type, other->value.p));	134✔
147	}
148
149	return ostream_puts(os, type_pp(type));	67✔
150	}
151
152	static int delegate(ostream_t os, printf_state_t s, printf_arg_t *arg, ...)	467,097✔
153	{
154	char spec[32];	467,097✔
155	assert(arg->len + 1 < sizeof(spec));	467,097✔
156	memcpy(spec, arg->start, arg->len);	467,097✔
157	spec[arg->len] = '\0';	467,097✔
158
159	va_list ap, ap2;	467,097✔
160	va_start(ap, arg);	467,097✔
161	va_copy(ap2, ap);	467,097✔
162
163	char small[64];	467,097✔
164	int req = vsnprintf(small, sizeof(small), spec, ap);	467,097✔
165
166	if (req + 1 > sizeof(small)) {	467,097✔
167	char *large = xmalloc(req + 1);	604✔
168	vsnprintf(large, req + 1, arg->start, ap2);	604✔
169	ostream_write(os, large, req);	604✔
170	free(large);	604✔
171	}
172	else
173	ostream_write(os, small, req);	466,493✔
174
175	va_end(ap);	467,097✔
176	va_end(ap2);	467,097✔
177	return req;	467,097✔
178	}
179
180	static fmt_fn_t get_pointer_formatter(char ch)	394✔
181	{
182	switch (ch) {	394✔
183	case 'i': return format_ident;
184	case 'I': return format_ident_toupper;	160✔
185	case 'T': return format_type;	201✔
186	default: return NULL;	4✔
187	}
188	}
189
190	static int ansi_escape(ostream_t os, printf_state_t state, const char **fmt)	151,862✔
191	{
192	bool has_format = false;	151,862✔
193	const char start = fmt;	151,862✔
194	do {	795,930✔
195	has_format \|= (**fmt == '%');	795,930✔
196	(*fmt)++;	795,930✔
197	} while (fmt != '\0' && fmt != '$');	795,930✔
198
199	if (**fmt == '\0')	151,862✔
200	return ostream_write(os, start, *fmt - start);	73✔
201
202	const char end = fmt;	151,789✔
203	(*fmt)++; // Advance past final '$'	151,789✔
204
205	size_t len = len = *fmt - start - 2;	151,789✔
206	const char *e = e = start + 1;	151,789✔
207	LOCAL_TEXT_BUF tb = NULL;	303,578✔
208
209	if (has_format) {	151,789✔
210	// Expand any embedded formatting inside the ANSI escape
211	tb = tb_new();	16,286✔
212
213	ostream_t aos = {	16,286✔
214	tb_ostream_write,
215	tb,
216	os->charset,	16,286✔
217	false,
218	};
219
220	printf_interpret(&aos, state, start + 1, end);	16,286✔
221
222	e = tb_get(tb);	16,286✔
223	len = tb_len(tb);	16,286✔
224	}
225
226	bool bold;	151,789✔
227	if ((bold = (*e == '!')))	151,789✔
228	++e, --len;	5✔
229
230	bool bright;	151,789✔
231	if ((bright = (*e == '+')))	151,789✔
232	++e, --len;	29✔
233
234	if (*e == '#') {	151,789✔
235	char *eptr;	1✔
236	int code = strtoul(e + 1, &eptr, 10);	1✔
237	if (eptr == e + len) {	1✔
238	char buf[16];	1✔
239	if (bold)	1✔
240	checked_sprintf(buf, sizeof(buf), "\033[1;38;5;%dm", code);	×
241	else
242	checked_sprintf(buf, sizeof(buf), "\033[38;5;%dm", code);	1✔
243
244	if (os->terminal)	1✔
245	ostream_puts(os, buf);	1✔
246
247	return 0;	1✔
248	}
249	}
250
251	if (strncmp(e, "link:", 5) == 0) {	151,788✔
252	const char *bel = strchr(e, '\07');	16,287✔
253
254	#ifndef __MINGW32__ // Winpty doesn't recognise these
255	if (os->terminal) {	16,287✔
256	ostream_puts(os, "\033]8;;");	2✔
257	ostream_write(os, e + 5, len - 5);	2✔
258	ostream_puts(os, "\033]8;;\07");	2✔
259	return e + len - bel - 1;	2✔
260	}
261	#endif
262
263	return ostream_write(os, bel + 1, e + len - bel - 1);	16,285✔
264	}
265
266	for (int i = 0; i < ARRAY_LEN(escapes); i++) {	513,050✔
267	if (strncmp(e, escapes[i].name, len) == 0) {	513,048✔
268	int code = escapes[i].value + (bright ? 60 : 0);	135,499✔
269	char buf[16];	135,499✔
270	if (bold)	135,499✔
271	checked_sprintf(buf, sizeof(buf), "\033[1;%dm", code);	4✔
272	else
273	checked_sprintf(buf, sizeof(buf), "\033[%dm", code);	135,495✔
274
275	if (os->terminal)	135,499✔
276	ostream_puts(os, buf);	5✔
277
278	return 0;	135,499✔
279	}
280	}
281
282	return ostream_write(os, start, *fmt - start);	2✔
283	}
284
285	static int format_z(ostream_t os, printf_state_t s, printf_arg_t *arg)	119,476✔
286	{
287	assert(arg->precision == INT_MIN);	119,476✔
288	return delegate(os, s, arg, arg->value.z);	119,476✔
289	}
290
291	static int format_ll(ostream_t os, printf_state_t s, printf_arg_t *arg)	×
292	{
293	if (arg->precision != INT_MIN)	×
294	return delegate(os, s, arg, arg->precision, arg->value.ll);	×
295	else
296	return delegate(os, s, arg, arg->value.ll);	×
297	}
298
299	static int format_l(ostream_t os, printf_state_t s, printf_arg_t *arg)	3,525✔
300	{
301	if (arg->precision != INT_MIN)	3,525✔
302	return delegate(os, s, arg, arg->precision, arg->value.l);	856✔
303	else
304	return delegate(os, s, arg, arg->value.l);	2,669✔
305	}
306
307	static int format_i(ostream_t os, printf_state_t s, printf_arg_t *arg)	58,868✔
308	{
309	if (arg->precision != INT_MIN)	58,868✔
310	return delegate(os, s, arg, arg->precision, arg->value.i);	10,144✔
311	else
312	return delegate(os, s, arg, arg->value.i);	48,724✔
313	}
314
315	static int format_f(ostream_t os, printf_state_t s, printf_arg_t *arg)	581✔
316	{
317	if (arg->precision != INT_MIN)	581✔
318	return delegate(os, s, arg, arg->precision, arg->value.f);	7✔
319	else
320	return delegate(os, s, arg, arg->value.f);	574✔
321	}
322
323	static int format_s(ostream_t os, printf_state_t s, printf_arg_t *arg)	284,643✔
324	{
325	if (arg->precision != INT_MIN)	284,643✔
326	return delegate(os, s, arg, arg->precision, arg->value.p);	41,238✔
327	else
328	return delegate(os, s, arg, arg->value.p);	243,405✔
329	}
330
331	static int format_p(ostream_t os, printf_state_t s, printf_arg_t *arg)	4✔
332	{
333	return delegate(os, s, arg, arg->value.p);	4✔
334	}
335
336	static int printf_interpret(ostream_t os, printf_state_t state,	409,002✔
337	const char fmt, const char end)
338	{
339	int nchars = 0;	409,002✔
340	for (const char *p = fmt;;) {	409,002✔
341	const char *start = p;	1,029,977✔
342	while (p < end && p != '%' && p != '$')	2,402,880✔
343	p++;	1,372,903✔
344
345	if (start < p)	1,029,977✔
346	nchars += ostream_write(os, start, p - start);	409,985✔
347
348	if (p == end)	1,029,977✔
349	return nchars;	409,002✔
350	else if (*p == '$') {	620,975✔
351	nchars += ansi_escape(os, state, &p);	151,862✔
352	continue;	151,862✔
353	}
354	else if (p == '%' && (p + 1) == '%') {	469,113✔
355	nchars += ostream_write(os, "%", 1);	1,626✔
356	p += 2;	1,626✔
357	continue;	1,626✔
358	}
359
360	assert(state->pos < state->nargs);	467,487✔
361
362	printf_arg_t *arg = &(state->args[state->pos]);	467,487✔
363	nchars += (*arg->fn)(os, state, arg);	467,487✔
364	p += arg->len;	467,487✔
365
366	state->pos++;	467,487✔
367	}
368	}
369
370	int nvc_vfprintf(ostream_t os, const char fmt, va_list ap)	392,716✔
371	{
372	printf_state_t state = {};	392,716✔
373
374	const char *end = NULL;	392,716✔
375	for (const char *p = fmt;;) {	392,716✔
376	while (p != '\0' && p != '%')	2,807,886✔
377	p++;	1,946,057✔
378
379	if (*p == '\0') {	861,829✔
380	end = p;	392,716✔
381	break;	392,716✔
382	}
383
384	printf_arg_t arg = { .start = p, .precision = INT_MIN };	469,113✔
385	bool z_mod = false;	469,113✔
386	int l_mod = 0;	469,113✔
387	again:	657,369✔
388	switch (*++p) {	657,369✔
389	case 'l':	3,527✔
390	l_mod++;	3,527✔
391	goto again;	3,527✔
392	case 'z':	119,476✔
393	z_mod = true;	119,476✔
394	goto again;	119,476✔
395	case '-':	13,008✔
396	case '+':
397	case '.':
398	case '0'...'9':
399	goto again;	13,008✔
400	case '*':	52,245✔
401	arg.precision = va_arg(ap, int);	52,245✔
402	goto again;	52,245✔
403	case 'd':	181,151✔
404	case 'i':
405	case 'x':
406	case 'u':
407	if (z_mod) {	181,151✔
408	arg.value.z = va_arg(ap, size_t);	119,476✔
409	arg.fn = format_z;	119,476✔
410	}
411	else if (l_mod >= 2) {	61,675✔
412	arg.value.ll = va_arg(ap, long long);	×
413	arg.fn = format_ll;	×
414	}
415	else if (l_mod == 1) {	61,675✔
416	arg.value.l = va_arg(ap, long);	3,525✔
417	arg.fn = format_l;	3,525✔
418	}
419	else {
420	arg.value.i = va_arg(ap, int);	58,150✔
421	arg.fn = format_i;	58,150✔
422	}
423	break;
424	case 'c':	718✔
425	arg.value.i = va_arg(ap, int);	718✔
426	arg.fn = format_i;	718✔
427	break;	718✔
428	case 'e':	581✔
429	case 'f':
430	case 'g':
431	arg.value.f = va_arg(ap, double);	581✔
432	arg.fn = format_f;	581✔
433	break;	581✔
434	case 's':	284,643✔
435	arg.value.p = va_arg(ap, char *);	284,643✔
436	arg.fn = format_s;	284,643✔
437	break;	284,643✔
438	case 'p':	394✔
439	arg.value.p = va_arg(ap, void *);	394✔
440	if ((arg.fn = get_pointer_formatter(p[1])))	394✔
441	p++;	390✔
442	else
443	arg.fn = format_p;
444	break;
445	case '%':	1,626✔
446	p++;	1,626✔
447	continue;	1,626✔
448	default:	×
449	fatal_trace("unhandled character '%c' in format", *p);
450	}
451
452	arg.len = ++p - arg.start;	467,487✔
453
454	if (state.nargs == MAX_ARGS)	467,487✔
455	fatal_trace("maximum of %d printf arguments supported", MAX_ARGS);
456	else
457	state.args[state.nargs++] = arg;	467,487✔
458	}
459
460	return printf_interpret(os, &state, fmt, end);	785,432✔
461	}
462
463	int nvc_vprintf(const char *fmt, va_list ap)	10✔
464	{
465	return nvc_vfprintf(nvc_stdout(), fmt, ap);	10✔
466	}
467
468	int nvc_printf(const char *fmt, ...)	10✔
469	{
470	va_list ap;	10✔
471	va_start(ap, fmt);	10✔
472	const int nchars = nvc_vprintf(fmt, ap);	10✔
473	va_end(ap);	10✔
474	return nchars;	10✔
475	}
476
477	int nvc_fprintf(ostream_t os, const char fmt, ...)	127,243✔
478	{
479	va_list ap;	127,243✔
480	va_start(ap, fmt);	127,243✔
481	const int nchars = nvc_vfprintf(os, fmt, ap);	127,243✔
482	va_end(ap);	127,243✔
483	return nchars;	127,243✔
484	}
485
486	void stdio_ostream_write(const char buf, size_t len, void ctx)	865,368✔
487	{
488	FILE *f = ctx;	865,368✔
489	fwrite(buf, len, 1, f);	865,368✔
490	}	865,368✔
491
492	static void init_terminal_ostream(ostream_t os, FILE f)	4✔
493	{
494	os->callback = stdio_ostream_write;	4✔
495	os->context = f;	4✔
496
497	if (isatty(fileno(f))) {	4✔
498	os->charset = utf8_terminal() ? CHARSET_UTF8 : CHARSET_ISO88591;	×
499	os->terminal = color_terminal();	×
500	}
501	else {
502	os->charset = CHARSET_ISO88591;	4✔
503	os->terminal = false;	4✔
504	}
505	}	4✔
506
507	ostream_t *nvc_stdout(void)	16✔
508	{
509	static ostream_t os;	16✔
510	INIT_ONCE(init_terminal_ostream(&os, stdout));	16✔
511	return &os;	16✔
512	}
513
514	ostream_t *nvc_stderr(void)	×
515	{
516	static ostream_t os;	×
517	INIT_ONCE(init_terminal_ostream(&os, stderr));	×
518	return &os;	×
519	}
520
521	char color_asprintf(const char fmt, ...)	23✔
522	{
523	LOCAL_TEXT_BUF tb = tb_new();	46✔
524	ostream_t os = { tb_ostream_write, tb, CHARSET_ISO88591, color_terminal() };	23✔
525
526	va_list ap;	23✔
527	va_start(ap, fmt);	23✔
528	nvc_vfprintf(&os, fmt, ap);	23✔
529	va_end(ap);	23✔
530
531	return tb_claim(tb);	23✔
532	}

nickg / nvc / 20414715417

Source File Press 'n' to go to next uncovered line, 'b' for previous

Source File
Press 'n' to go to next uncovered line, 'b' for previous