22091528042

Committed 17 Feb 2026 08:40AM UTC coverage: 92.57% (-0.03%) from 92.6%

Build # 22091528042

Build Type

push

github

Committed by

nickg

Commit Message

Refactor parsing of type marks

Run Details

74 of 76 new or added lines in 2 files covered. (97.37%)

501 existing lines in 7 files now uncovered.

76868 of 83038 relevant lines covered (92.57%)

443051.54 hits per line

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94.4

/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 "object.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 25

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)
{
   if (str == NULL)
      return ostream_write(os, "(null)", 6);
   else
      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 format_object_kind(ostream_t *os, printf_state_t *state,
                              printf_arg_t *arg)
{
   object_t *obj = arg->value.p;
   return ostream_puts(os, object_kind_str(obj));
}

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, spec, 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;
   case 'K': return format_object_kind;
   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 "object.h"
21	#include "printf.h"
22	#include "thread.h"
23	#include "type.h"
24
25	#include <assert.h>
26	#include <stdio.h>
27	#include <string.h>
28	#include <stdlib.h>
29	#include <unistd.h>
30	#include <limits.h>
31
32	#define ANSI_RESET 0
33	#define ANSI_BOLD 1
34	#define ANSI_FG_BLACK 30
35	#define ANSI_FG_RED 31
36	#define ANSI_FG_GREEN 32
37	#define ANSI_FG_YELLOW 33
38	#define ANSI_FG_BLUE 34
39	#define ANSI_FG_MAGENTA 35
40	#define ANSI_FG_CYAN 36
41	#define ANSI_FG_WHITE 37
42
43	#define MAX_ARGS 25
44
45	typedef struct _printf_state printf_state_t;
46	typedef struct _printf_arg printf_arg_t;
47
48	typedef union {
49	long long ll;
50	long l;
51	size_t z;
52	double f;
53	int i;
54	void *p;
55	} printf_value_t;
56
57	typedef int (fmt_fn_t)(ostream_t , printf_state_t , printf_arg_t );
58
59	typedef struct _printf_arg {
60	const char *start;
61	size_t len;
62	fmt_fn_t fn;
63	printf_value_t value;
64	int precision;
65	} printf_arg_t;
66
67	typedef struct _printf_state {
68	printf_arg_t args[MAX_ARGS];
69	unsigned nargs;
70	unsigned pos;
71	} printf_state_t;
72
73	typedef struct {
74	const char *name;
75	int value;
76	} color_escape_t;
77
78	static const color_escape_t escapes[] = {
79	{ "", ANSI_RESET },
80	{ "bold", ANSI_BOLD },
81	{ "black", ANSI_FG_BLACK },
82	{ "red", ANSI_FG_RED },
83	{ "green", ANSI_FG_GREEN },
84	{ "yellow", ANSI_FG_YELLOW },
85	{ "blue", ANSI_FG_BLUE },
86	{ "magenta", ANSI_FG_MAGENTA },
87	{ "cyan", ANSI_FG_CYAN },
88	{ "white", ANSI_FG_WHITE },
89	};
90
91	static int printf_interpret(ostream_t os, printf_state_t state,
92	const char fmt, const char end);
93
94	int ostream_write(ostream_t os, const char buf, size_t len)	1,598,509✔
95	{
96	(*os->callback)(buf, len, os->context);	1,598,509✔
97	return len;	1,598,509✔
98	}
99
100	int ostream_putc(ostream_t *os, char ch)	597,525✔
101	{
102	char buf[1] = { ch };	597,525✔
103	return ostream_write(os, buf, 1);	597,525✔
104	}
105
106	int ostream_puts(ostream_t os, const char str)	7,395✔
107	{
108	if (str == NULL)	7,395✔
UNCOV 109	return ostream_write(os, "(null)", 6);	×
110	else
111	return ostream_write(os, str, strlen(str));	7,395✔
112	}
113
114	static int format_ident(ostream_t os, printf_state_t state, printf_arg_t *arg)	56✔
115	{
116	ident_t id = arg->value.p;	56✔
117	return ostream_write(os, istr(id), ident_len(id));	56✔
118	}
119
120	static int format_ident_toupper(ostream_t os, printf_state_t state,	174✔
121	printf_arg_t *arg)
122	{
123	ident_t id = arg->value.p;	174✔
124	size_t len = ident_len(id);	174✔
125	const char *str = istr(id);	174✔
126	int nchars = 0;	174✔
127	char chunk[32];	174✔
128
129	for (int i = 0; i < len; i += sizeof(chunk)) {	348✔
130	const int tocopy = MIN(sizeof(chunk), len - i);	174✔
131	for (int j = 0; j < tocopy; j++)	709✔
132	chunk[j] = toupper_iso88591(str[i + j]);	535✔
133
134	nchars += ostream_write(os, chunk, tocopy);	174✔
135	}
136
137	return nchars;	174✔
138	}
139
140	static int format_type(ostream_t os, printf_state_t state, printf_arg_t *arg)	212✔
141	{
142	type_t type = arg->value.p;	212✔
143
144	// Print a fully qualified name if there is another type in the
145	// argument list with the same simple name
146
147	for (int i = 0; i < state->nargs; i++) {	407✔
148	const printf_arg_t *other = &(state->args[i]);	329✔
149	if (other != arg && other->fn == format_type)	329✔
150	return ostream_puts(os, type_pp2(type, other->value.p));	134✔
151	}
152
153	return ostream_puts(os, type_pp(type));	78✔
154	}
155
UNCOV 156	static int format_object_kind(ostream_t os, printf_state_t state,	×
157	printf_arg_t *arg)
158	{
UNCOV 159	object_t *obj = arg->value.p;	×
UNCOV 160	return ostream_puts(os, object_kind_str(obj));	×
161	}
162
163	static int delegate(ostream_t os, printf_state_t s, printf_arg_t *arg, ...)	508,546✔
164	{
165	char spec[32];	508,546✔
166	assert(arg->len + 1 < sizeof(spec));	508,546✔
167	memcpy(spec, arg->start, arg->len);	508,546✔
168	spec[arg->len] = '\0';	508,546✔
169
170	va_list ap, ap2;	508,546✔
171	va_start(ap, arg);	508,546✔
172	va_copy(ap2, ap);	508,546✔
173
174	char small[64];	508,546✔
175	int req = vsnprintf(small, sizeof(small), spec, ap);	508,546✔
176
177	if (req + 1 > sizeof(small)) {	508,546✔
178	char *large = xmalloc(req + 1);	644✔
179	vsnprintf(large, req + 1, spec, ap2);	644✔
180	ostream_write(os, large, req);	644✔
181	free(large);	644✔
182	}
183	else
184	ostream_write(os, small, req);	507,902✔
185
186	va_end(ap);	508,546✔
187	va_end(ap2);	508,546✔
188	return req;	508,546✔
189	}
190
191	static fmt_fn_t get_pointer_formatter(char ch)	446✔
192	{
193	switch (ch) {	446✔
194	case 'i': return format_ident;
195	case 'I': return format_ident_toupper;	174✔
196	case 'T': return format_type;	212✔
UNCOV 197	case 'K': return format_object_kind;	×
198	default: return NULL;	4✔
199	}
200	}
201
202	static int ansi_escape(ostream_t os, printf_state_t state, const char **fmt)	152,219✔
203	{
204	bool has_format = false;	152,219✔
205	const char start = fmt;	152,219✔
206	do {	799,459✔
207	has_format \|= (**fmt == '%');	799,459✔
208	(*fmt)++;	799,459✔
209	} while (fmt != '\0' && fmt != '$');	799,459✔
210
211	if (**fmt == '\0')	152,219✔
212	return ostream_write(os, start, *fmt - start);	73✔
213
214	const char end = fmt;	152,146✔
215	(*fmt)++; // Advance past final '$'	152,146✔
216
217	size_t len = len = *fmt - start - 2;	152,146✔
218	const char *e = e = start + 1;	152,146✔
219	LOCAL_TEXT_BUF tb = NULL;	304,292✔
220
221	if (has_format) {	152,146✔
222	// Expand any embedded formatting inside the ANSI escape
223	tb = tb_new();	16,405✔
224
225	ostream_t aos = {	16,405✔
226	tb_ostream_write,
227	tb,
228	os->charset,	16,405✔
229	false,
230	};
231
232	printf_interpret(&aos, state, start + 1, end);	16,405✔
233
234	e = tb_get(tb);	16,405✔
235	len = tb_len(tb);	16,405✔
236	}
237
238	bool bold;	152,146✔
239	if ((bold = (*e == '!')))	152,146✔
240	++e, --len;	5✔
241
242	bool bright;	152,146✔
243	if ((bright = (*e == '+')))	152,146✔
244	++e, --len;	29✔
245
246	if (*e == '#') {	152,146✔
247	char *eptr;	1✔
248	int code = strtoul(e + 1, &eptr, 10);	1✔
249	if (eptr == e + len) {	1✔
250	char buf[16];	1✔
251	if (bold)	1✔
UNCOV 252	checked_sprintf(buf, sizeof(buf), "\033[1;38;5;%dm", code);	×
253	else
254	checked_sprintf(buf, sizeof(buf), "\033[38;5;%dm", code);	1✔
255
256	if (os->terminal)	1✔
257	ostream_puts(os, buf);	1✔
258
259	return 0;	1✔
260	}
261	}
262
263	if (strncmp(e, "link:", 5) == 0) {	152,145✔
264	const char *bel = strchr(e, '\07');	16,406✔
265
266	#ifndef __MINGW32__ // Winpty doesn't recognise these
267	if (os->terminal) {	16,406✔
268	ostream_puts(os, "\033]8;;");	2✔
269	ostream_write(os, e + 5, len - 5);	2✔
270	ostream_puts(os, "\033]8;;\07");	2✔
271	return e + len - bel - 1;	2✔
272	}
273	#endif
274
275	return ostream_write(os, bel + 1, e + len - bel - 1);	16,404✔
276	}
277
278	for (int i = 0; i < ARRAY_LEN(escapes); i++) {	513,644✔
279	if (strncmp(e, escapes[i].name, len) == 0) {	513,642✔
280	int code = escapes[i].value + (bright ? 60 : 0);	135,737✔
281	char buf[16];	135,737✔
282	if (bold)	135,737✔
283	checked_sprintf(buf, sizeof(buf), "\033[1;%dm", code);	4✔
284	else
285	checked_sprintf(buf, sizeof(buf), "\033[%dm", code);	135,733✔
286
287	if (os->terminal)	135,737✔
288	ostream_puts(os, buf);	5✔
289
290	return 0;	135,737✔
291	}
292	}
293
294	return ostream_write(os, start, *fmt - start);	2✔
295	}
296
297	static int format_z(ostream_t os, printf_state_t s, printf_arg_t *arg)	120,390✔
298	{
299	assert(arg->precision == INT_MIN);	120,390✔
300	return delegate(os, s, arg, arg->value.z);	120,390✔
301	}
302
UNCOV 303	static int format_ll(ostream_t os, printf_state_t s, printf_arg_t *arg)	×
304	{
UNCOV 305	if (arg->precision != INT_MIN)	×
UNCOV 306	return delegate(os, s, arg, arg->precision, arg->value.ll);	×
307	else
UNCOV 308	return delegate(os, s, arg, arg->value.ll);	×
309	}
310
311	static int format_l(ostream_t os, printf_state_t s, printf_arg_t *arg)	8,940✔
312	{
313	if (arg->precision != INT_MIN)	8,940✔
314	return delegate(os, s, arg, arg->precision, arg->value.l);	6,232✔
315	else
316	return delegate(os, s, arg, arg->value.l);	2,708✔
317	}
318
319	static int format_i(ostream_t os, printf_state_t s, printf_arg_t *arg)	66,496✔
320	{
321	if (arg->precision != INT_MIN)	66,496✔
322	return delegate(os, s, arg, arg->precision, arg->value.i);	10,145✔
323	else
324	return delegate(os, s, arg, arg->value.i);	56,351✔
325	}
326
327	static int format_f(ostream_t os, printf_state_t s, printf_arg_t *arg)	656✔
328	{
329	if (arg->precision != INT_MIN)	656✔
330	return delegate(os, s, arg, arg->precision, arg->value.f);	7✔
331	else
332	return delegate(os, s, arg, arg->value.f);	649✔
333	}
334
335	static int format_s(ostream_t os, printf_state_t s, printf_arg_t *arg)	312,060✔
336	{
337	if (arg->precision != INT_MIN)	312,060✔
338	return delegate(os, s, arg, arg->precision, arg->value.p);	41,213✔
339	else
340	return delegate(os, s, arg, arg->value.p);	270,847✔
341	}
342
343	static int format_p(ostream_t os, printf_state_t s, printf_arg_t *arg)	4✔
344	{
345	return delegate(os, s, arg, arg->value.p);	4✔
346	}
347
348	static int printf_interpret(ostream_t os, printf_state_t state,	437,728✔
349	const char fmt, const char end)
350	{
351	int nchars = 0;	437,728✔
352	for (const char *p = fmt;;) {	437,728✔
353	const char *start = p;	1,106,776✔
354	while (p < end && p != '%' && p != '$')	2,637,745✔
355	p++;	1,530,969✔
356
357	if (start < p)	1,106,776✔
358	nchars += ostream_write(os, start, p - start);	438,094✔
359
360	if (p == end)	1,106,776✔
361	return nchars;	437,728✔
362	else if (*p == '$') {	669,048✔
363	nchars += ansi_escape(os, state, &p);	152,219✔
364	continue;	152,219✔
365	}
366	else if (p == '%' && (p + 1) == '%') {	516,829✔
367	nchars += ostream_write(os, "%", 1);	7,841✔
368	p += 2;	7,841✔
369	continue;	7,841✔
370	}
371
372	assert(state->pos < state->nargs);	508,988✔
373
374	printf_arg_t *arg = &(state->args[state->pos]);	508,988✔
375	nchars += (*arg->fn)(os, state, arg);	508,988✔
376	p += arg->len;	508,988✔
377
378	state->pos++;	508,988✔
379	}
380	}
381
382	int nvc_vfprintf(ostream_t os, const char fmt, va_list ap)	421,323✔
383	{
384	printf_state_t state = {};	421,323✔
385
386	const char *end = NULL;	421,323✔
387	for (const char *p = fmt;;) {	421,323✔
388	while (p != '\0' && p != '%')	3,043,424✔
389	p++;	2,105,272✔
390
391	if (*p == '\0') {	938,152✔
392	end = p;	421,323✔
393	break;	421,323✔
394	}
395
396	printf_arg_t arg = { .start = p, .precision = INT_MIN };	516,829✔
397	bool z_mod = false;	516,829✔
398	int l_mod = 0;	516,829✔
399	again:	722,121✔
400	switch (*++p) {	722,121✔
401	case 'l':	8,942✔
402	l_mod++;	8,942✔
403	goto again;	8,942✔
404	case 'z':	120,390✔
405	z_mod = true;	120,390✔
406	goto again;	120,390✔
407	case '-':	18,363✔
408	case '+':
409	case '.':
410	case '0'...'9':
411	goto again;	18,363✔
412	case '*':	57,597✔
413	arg.precision = va_arg(ap, int);	57,597✔
414	goto again;	57,597✔
415	case 'd':	194,769✔
416	case 'i':
417	case 'x':
418	case 'u':
419	if (z_mod) {	194,769✔
420	arg.value.z = va_arg(ap, size_t);	120,390✔
421	arg.fn = format_z;	120,390✔
422	}
423	else if (l_mod >= 2) {	74,379✔
UNCOV 424	arg.value.ll = va_arg(ap, long long);	×
UNCOV 425	arg.fn = format_ll;	×
426	}
427	else if (l_mod == 1) {	74,379✔
428	arg.value.l = va_arg(ap, long);	8,940✔
429	arg.fn = format_l;	8,940✔
430	}
431	else {
432	arg.value.i = va_arg(ap, int);	65,439✔
433	arg.fn = format_i;	65,439✔
434	}
435	break;
436	case 'c':	1,057✔
437	arg.value.i = va_arg(ap, int);	1,057✔
438	arg.fn = format_i;	1,057✔
439	break;	1,057✔
440	case 'e':	656✔
441	case 'f':
442	case 'g':
443	arg.value.f = va_arg(ap, double);	656✔
444	arg.fn = format_f;	656✔
445	break;	656✔
446	case 's':	312,060✔
447	arg.value.p = va_arg(ap, char *);	312,060✔
448	arg.fn = format_s;	312,060✔
449	break;	312,060✔
450	case 'p':	446✔
451	arg.value.p = va_arg(ap, void *);	446✔
452	if ((arg.fn = get_pointer_formatter(p[1])))	446✔
453	p++;	442✔
454	else
455	arg.fn = format_p;
456	break;
457	case '%':	7,841✔
458	p++;	7,841✔
459	continue;	7,841✔
UNCOV 460	default:	×
461	fatal_trace("unhandled character '%c' in format", *p);
462	}
463
464	arg.len = ++p - arg.start;	508,988✔
465
466	if (state.nargs == MAX_ARGS)	508,988✔
467	fatal_trace("maximum of %d printf arguments supported", MAX_ARGS);
468	else
469	state.args[state.nargs++] = arg;	508,988✔
470	}
471
472	return printf_interpret(os, &state, fmt, end);	842,646✔
473	}
474
475	int nvc_vprintf(const char *fmt, va_list ap)	10✔
476	{
477	return nvc_vfprintf(nvc_stdout(), fmt, ap);	10✔
478	}
479
480	int nvc_printf(const char *fmt, ...)	10✔
481	{
482	va_list ap;	10✔
483	va_start(ap, fmt);	10✔
484	const int nchars = nvc_vprintf(fmt, ap);	10✔
485	va_end(ap);	10✔
486	return nchars;	10✔
487	}
488
489	int nvc_fprintf(ostream_t os, const char fmt, ...)	127,814✔
490	{
491	va_list ap;	127,814✔
492	va_start(ap, fmt);	127,814✔
493	const int nchars = nvc_vfprintf(os, fmt, ap);	127,814✔
494	va_end(ap);	127,814✔
495	return nchars;	127,814✔
496	}
497
498	void stdio_ostream_write(const char buf, size_t len, void ctx)	867,350✔
499	{
500	FILE *f = ctx;	867,350✔
501	fwrite(buf, len, 1, f);	867,350✔
502	}	867,350✔
503
504	static void init_terminal_ostream(ostream_t os, FILE f)	7✔
505	{
506	os->callback = stdio_ostream_write;	7✔
507	os->context = f;	7✔
508
509	if (isatty(fileno(f))) {	7✔
UNCOV 510	os->charset = utf8_terminal() ? CHARSET_UTF8 : CHARSET_ISO88591;	×
UNCOV 511	os->terminal = color_terminal();	×
512	}
513	else {
514	os->charset = CHARSET_ISO88591;	7✔
515	os->terminal = false;	7✔
516	}
517	}	7✔
518
519	ostream_t *nvc_stdout(void)	16✔
520	{
521	static ostream_t os;	16✔
522	INIT_ONCE(init_terminal_ostream(&os, stdout));	16✔
523	return &os;	16✔
524	}
525
526	ostream_t *nvc_stderr(void)	51✔
527	{
528	static ostream_t os;	51✔
529	INIT_ONCE(init_terminal_ostream(&os, stderr));	51✔
530	return &os;	51✔
531	}
532
533	char color_asprintf(const char fmt, ...)	23✔
534	{
535	LOCAL_TEXT_BUF tb = tb_new();	46✔
536	ostream_t os = { tb_ostream_write, tb, CHARSET_ISO88591, color_terminal() };	23✔
537
538	va_list ap;	23✔
539	va_start(ap, fmt);	23✔
540	nvc_vfprintf(&os, fmt, ap);	23✔
541	va_end(ap);	23✔
542
543	return tb_claim(tb);	23✔
544	}

nickg / nvc / 22091528042

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