27743617187

Committed 18 Jun 2026 07:23AM UTC coverage: 92.288% (-0.001%) from 92.289%

Build # 27743617187

Build Type

push

github

Committed by

nickg

Commit Message

Do not expand `include inside false `ifdef

Coverage Stats

7 of 7 new or added lines in 1 file covered. (100.0%)

137 existing lines in 6 files now uncovered.

79213 of 85832 relevant lines covered (92.29%)

631325.18 hits per line

Source File
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93.54

/src/printf.c

//
//  Copyright (C) 2025-2026  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 "mir/mir-node.h"
#include "object.h"
#include "printf.h"
#include "thread.h"
#include "type.h"

#include <assert.h>
#include <errno.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             width;
   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 format_mir(ostream_t *os, printf_state_t *state, printf_arg_t *arg)
{
   mir_value_t *value = arg->value.p;
   char buf[64];

   switch (value->tag) {
   case MIR_TAG_NODE:
      checked_sprintf(buf, sizeof(buf), "%%%d", value->id);
      break;
   case MIR_TAG_CONST:
      checked_sprintf(buf, sizeof(buf), "#%d",
                      value->id - (1 << (_MIR_ID_BITS - 1)));
      break;
   default:
      checked_sprintf(buf, sizeof(buf), "{tag:%d, id:%x}",
                      value->tag, value->id);
      break;
   }

   return ostream_puts(os, buf);
}

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;
   case 'M': return format_mir;
   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,
      };

      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->flags & OS_COLOR)
            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->flags & 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->flags & OS_COLOR)
            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->width != INT_MIN)
      return delegate(os, s, arg, arg->width, arg->precision, arg->value.f);
   else 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->width != INT_MIN)
      return delegate(os, s, arg, arg->width, arg->precision, arg->value.p);
   else 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,
         .width = INT_MIN,
         .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.width = arg.precision;
         arg.precision = va_arg(ap, int);
         goto again;
      case 'd':
      case 'i':
      case 'x':
      case 'u':
      case 'o':
         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;
   os->flags = 0;

   const int saved_errno = errno;

   if (isatty(fileno(f))) {
      os->charset = utf8_terminal() ? CHARSET_UTF8 : CHARSET_ISO88591;
      os->flags |= OS_TERMINAL;
   }
   else
      os->charset = CHARSET_ISO88591;

   if (color_terminal())
      os->flags |= OS_COLOR;

   errno = saved_errno;
}

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, OS_COLOR };

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

   return tb_claim(tb);
}

1	//
2	// Copyright (C) 2025-2026 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 "mir/mir-node.h"
21	#include "object.h"
22	#include "printf.h"
23	#include "thread.h"
24	#include "type.h"
25
26	#include <assert.h>
27	#include <errno.h>
28	#include <stdio.h>
29	#include <string.h>
30	#include <stdlib.h>
31	#include <unistd.h>
32	#include <limits.h>
33
34	#define ANSI_RESET 0
35	#define ANSI_BOLD 1
36	#define ANSI_FG_BLACK 30
37	#define ANSI_FG_RED 31
38	#define ANSI_FG_GREEN 32
39	#define ANSI_FG_YELLOW 33
40	#define ANSI_FG_BLUE 34
41	#define ANSI_FG_MAGENTA 35
42	#define ANSI_FG_CYAN 36
43	#define ANSI_FG_WHITE 37
44
45	#define MAX_ARGS 25
46
47	typedef struct _printf_state printf_state_t;
48	typedef struct _printf_arg printf_arg_t;
49
50	typedef union {
51	long long ll;
52	long l;
53	size_t z;
54	double f;
55	int i;
56	void *p;
57	} printf_value_t;
58
59	typedef int (fmt_fn_t)(ostream_t , printf_state_t , printf_arg_t );
60
61	typedef struct _printf_arg {
62	const char *start;
63	size_t len;
64	fmt_fn_t fn;
65	printf_value_t value;
66	int width;
67	int precision;
68	} printf_arg_t;
69
70	typedef struct _printf_state {
71	printf_arg_t args[MAX_ARGS];
72	unsigned nargs;
73	unsigned pos;
74	} printf_state_t;
75
76	typedef struct {
77	const char *name;
78	int value;
79	} color_escape_t;
80
81	static const color_escape_t escapes[] = {
82	{ "", ANSI_RESET },
83	{ "bold", ANSI_BOLD },
84	{ "black", ANSI_FG_BLACK },
85	{ "red", ANSI_FG_RED },
86	{ "green", ANSI_FG_GREEN },
87	{ "yellow", ANSI_FG_YELLOW },
88	{ "blue", ANSI_FG_BLUE },
89	{ "magenta", ANSI_FG_MAGENTA },
90	{ "cyan", ANSI_FG_CYAN },
91	{ "white", ANSI_FG_WHITE },
92	};
93
94	static int printf_interpret(ostream_t os, printf_state_t state,
95	const char fmt, const char end);
96
97	int ostream_write(ostream_t os, const char buf, size_t len)	2,605,004✔
98	{
99	(*os->callback)(buf, len, os->context);	2,605,004✔
100	return len;	2,605,004✔
101	}
102
103	int ostream_putc(ostream_t *os, char ch)	816,447✔
104	{
105	char buf[1] = { ch };	816,447✔
106	return ostream_write(os, buf, 1);	816,447✔
107	}
108
109	int ostream_puts(ostream_t os, const char str)	24,103✔
110	{
111	if (str == NULL)	24,103✔
UNCOV 112	return ostream_write(os, "(null)", 6);	×
113	else
114	return ostream_write(os, str, strlen(str));	24,103✔
115	}
116
117	static int format_ident(ostream_t os, printf_state_t state, printf_arg_t *arg)	413✔
118	{
119	ident_t id = arg->value.p;	413✔
120	return ostream_write(os, istr(id), ident_len(id));	413✔
121	}
122
123	static int format_ident_toupper(ostream_t os, printf_state_t state,	230✔
124	printf_arg_t *arg)
125	{
126	ident_t id = arg->value.p;	230✔
127	size_t len = ident_len(id);	230✔
128	const char *str = istr(id);	230✔
129	int nchars = 0;	230✔
130	char chunk[32];	230✔
131
132	for (int i = 0; i < len; i += sizeof(chunk)) {	460✔
133	const int tocopy = MIN(sizeof(chunk), len - i);	230✔
134	for (int j = 0; j < tocopy; j++)	1,100✔
135	chunk[j] = toupper_iso88591(str[i + j]);	870✔
136
137	nchars += ostream_write(os, chunk, tocopy);	230✔
138	}
139
140	return nchars;	230✔
141	}
142
143	static int format_type(ostream_t os, printf_state_t state, printf_arg_t *arg)	228✔
144	{
145	type_t type = arg->value.p;	228✔
146
147	// Print a fully qualified name if there is another type in the
148	// argument list with the same simple name
149
150	for (int i = 0; i < state->nargs; i++) {	443✔
151	const printf_arg_t *other = &(state->args[i]);	353✔
152	if (other != arg && other->fn == format_type)	353✔
153	return ostream_puts(os, type_pp2(type, other->value.p));	138✔
154	}
155
156	return ostream_puts(os, type_pp(type));	90✔
157	}
158
UNCOV 159	static int format_object_kind(ostream_t os, printf_state_t state,	×
160	printf_arg_t *arg)
161	{
162	object_t *obj = arg->value.p;	×
UNCOV 163	return ostream_puts(os, object_kind_str(obj));	×
164	}
165
166	static int format_mir(ostream_t os, printf_state_t state, printf_arg_t *arg)	16✔
167	{
168	mir_value_t *value = arg->value.p;	16✔
169	char buf[64];	16✔
170
171	switch (value->tag) {	16✔
172	case MIR_TAG_NODE:	4✔
173	checked_sprintf(buf, sizeof(buf), "%%%d", value->id);	4✔
174	break;	4✔
175	case MIR_TAG_CONST:	12✔
176	checked_sprintf(buf, sizeof(buf), "#%d",	12✔
177	value->id - (1 << (_MIR_ID_BITS - 1)));	12✔
178	break;	12✔
179	default:	×
180	checked_sprintf(buf, sizeof(buf), "{tag:%d, id:%x}",	×
181	value->tag, value->id);	×
UNCOV 182	break;	×
183	}
184
185	return ostream_puts(os, buf);	16✔
186	}
187
188	static int delegate(ostream_t os, printf_state_t s, printf_arg_t *arg, ...)	870,370✔
189	{
190	char spec[32];	870,370✔
191	assert(arg->len + 1 < sizeof(spec));	870,370✔
192	memcpy(spec, arg->start, arg->len);	870,370✔
193	spec[arg->len] = '\0';	870,370✔
194
195	va_list ap, ap2;	870,370✔
196	va_start(ap, arg);	870,370✔
197	va_copy(ap2, ap);	870,370✔
198
199	char small[64];	870,370✔
200	int req = vsnprintf(small, sizeof(small), spec, ap);	870,370✔
201
202	if (req + 1 > sizeof(small)) {	870,370✔
203	char *large = xmalloc(req + 1);	872✔
204	vsnprintf(large, req + 1, spec, ap2);	872✔
205	ostream_write(os, large, req);	872✔
206	free(large);	872✔
207	}
208	else
209	ostream_write(os, small, req);	869,498✔
210
211	va_end(ap);	870,370✔
212	va_end(ap2);	870,370✔
213	return req;	870,370✔
214	}
215
216	static fmt_fn_t get_pointer_formatter(char ch)	892✔
217	{
218	switch (ch) {	892✔
219	case 'i': return format_ident;
220	case 'I': return format_ident_toupper;	230✔
221	case 'T': return format_type;	228✔
UNCOV 222	case 'K': return format_object_kind;	×
223	case 'M': return format_mir;	16✔
224	default: return NULL;	5✔
225	}
226	}
227
228	static int ansi_escape(ostream_t os, printf_state_t state, const char **fmt)	205,819✔
229	{
230	bool has_format = false;	205,819✔
231	const char start = fmt;	205,819✔
232	do {	1,083,460✔
233	has_format \|= (**fmt == '%');	1,083,460✔
234	(*fmt)++;	1,083,460✔
235	} while (fmt != '\0' && fmt != '$');	1,083,460✔
236
237	if (**fmt == '\0')	205,819✔
238	return ostream_write(os, start, *fmt - start);	181✔
239
240	const char end = fmt;	205,638✔
241	(*fmt)++; // Advance past final '$'	205,638✔
242
243	size_t len = len = *fmt - start - 2;	205,638✔
244	const char *e = e = start + 1;	205,638✔
245	LOCAL_TEXT_BUF tb = NULL;	411,276✔
246
247	if (has_format) {	205,638✔
248	// Expand any embedded formatting inside the ANSI escape
249	tb = tb_new();	22,273✔
250
251	ostream_t aos = {	22,273✔
252	tb_ostream_write,
253	tb,
254	os->charset,	22,273✔
255	};
256
257	printf_interpret(&aos, state, start + 1, end);	22,273✔
258
259	e = tb_get(tb);	22,273✔
260	len = tb_len(tb);	22,273✔
261	}
262
263	bool bold;	205,638✔
264	if ((bold = (*e == '!')))	205,638✔
265	++e, --len;	2✔
266
267	bool bright;	205,638✔
268	if ((bright = (*e == '+')))	205,638✔
269	++e, --len;	39✔
270
271	if (*e == '#') {	205,638✔
272	char *eptr;	1✔
273	int code = strtoul(e + 1, &eptr, 10);	1✔
274	if (eptr == e + len) {	1✔
275	char buf[16];	1✔
276	if (bold)	1✔
UNCOV 277	checked_sprintf(buf, sizeof(buf), "\033[1;38;5;%dm", code);	×
278	else
279	checked_sprintf(buf, sizeof(buf), "\033[38;5;%dm", code);	1✔
280
281	if (os->flags & OS_COLOR)	1✔
282	ostream_puts(os, buf);	1✔
283
284	return 0;	1✔
285	}
286	}
287
288	if (strncmp(e, "link:", 5) == 0) {	205,637✔
289	const char *bel = strchr(e, '\07');	22,274✔
290
291	#ifndef __MINGW32__ // Winpty doesn't recognise these
292	if (os->flags & OS_TERMINAL) {	22,274✔
293	ostream_puts(os, "\033]8;;");	2✔
294	ostream_write(os, e + 5, len - 5);	2✔
295	ostream_puts(os, "\033]8;;\07");	2✔
296	return e + len - bel - 1;	2✔
297	}
298	#endif
299
300	return ostream_write(os, bel + 1, e + len - bel - 1);	22,272✔
301	}
302
303	for (int i = 0; i < ARRAY_LEN(escapes); i++) {	693,176✔
304	if (strncmp(e, escapes[i].name, len) == 0) {	693,174✔
305	int code = escapes[i].value + (bright ? 60 : 0);	183,361✔
306	char buf[16];	183,361✔
307	if (bold)	183,361✔
308	checked_sprintf(buf, sizeof(buf), "\033[1;%dm", code);	1✔
309	else
310	checked_sprintf(buf, sizeof(buf), "\033[%dm", code);	183,360✔
311
312	if (os->flags & OS_COLOR)	183,361✔
313	ostream_puts(os, buf);	1,839✔
314
315	return 0;	183,361✔
316	}
317	}
318
319	return ostream_write(os, start, *fmt - start);	2✔
320	}
321
322	static int format_z(ostream_t os, printf_state_t s, printf_arg_t *arg)	159,865✔
323	{
324	assert(arg->precision == INT_MIN);	159,865✔
325	return delegate(os, s, arg, arg->value.z);	159,865✔
326	}
327
UNCOV 328	static int format_ll(ostream_t os, printf_state_t s, printf_arg_t *arg)	×
329	{
330	if (arg->precision != INT_MIN)	×
UNCOV 331	return delegate(os, s, arg, arg->precision, arg->value.ll);	×
332	else
UNCOV 333	return delegate(os, s, arg, arg->value.ll);	×
334	}
335
336	static int format_l(ostream_t os, printf_state_t s, printf_arg_t *arg)	45,564✔
337	{
338	if (arg->precision != INT_MIN)	45,564✔
339	return delegate(os, s, arg, arg->precision, arg->value.l);	11,181✔
340	else
341	return delegate(os, s, arg, arg->value.l);	34,383✔
342	}
343
344	static int format_i(ostream_t os, printf_state_t s, printf_arg_t *arg)	127,394✔
345	{
346	if (arg->precision != INT_MIN)	127,394✔
347	return delegate(os, s, arg, arg->precision, arg->value.i);	13,699✔
348	else
349	return delegate(os, s, arg, arg->value.i);	113,695✔
350	}
351
352	static int format_f(ostream_t os, printf_state_t s, printf_arg_t *arg)	1,011✔
353	{
354	if (arg->width != INT_MIN)	1,011✔
355	return delegate(os, s, arg, arg->width, arg->precision, arg->value.f);	77✔
356	else if (arg->precision != INT_MIN)	934✔
357	return delegate(os, s, arg, arg->precision, arg->value.f);	9✔
358	else
359	return delegate(os, s, arg, arg->value.f);	925✔
360	}
361
362	static int format_s(ostream_t os, printf_state_t s, printf_arg_t *arg)	536,531✔
363	{
364	if (arg->width != INT_MIN)	536,531✔
365	return delegate(os, s, arg, arg->width, arg->precision, arg->value.p);	1✔
366	else if (arg->precision != INT_MIN)	536,530✔
367	return delegate(os, s, arg, arg->precision, arg->value.p);	56,744✔
368	else
369	return delegate(os, s, arg, arg->value.p);	479,786✔
370	}
371
372	static int format_p(ostream_t os, printf_state_t s, printf_arg_t *arg)	5✔
373	{
374	return delegate(os, s, arg, arg->value.p);	5✔
375	}
376
377	static int printf_interpret(ostream_t os, printf_state_t state,	686,320✔
378	const char fmt, const char end)
379	{
380	int nchars = 0;	686,320✔
381	for (const char *p = fmt;;) {	686,320✔
382	const char *start = p;	1,811,071✔
383	while (p < end && p != '%' && p != '$')	4,932,976✔
384	p++;	3,121,905✔
385
386	if (start < p)	1,811,071✔
387	nchars += ostream_write(os, start, p - start);	773,407✔
388
389	if (p == end)	1,811,071✔
390	return nchars;	686,320✔
391	else if (*p == '$') {	1,124,751✔
392	nchars += ansi_escape(os, state, &p);	205,819✔
393	continue;	205,819✔
394	}
395	else if (p == '%' && (p + 1) == '%') {	918,932✔
396	nchars += ostream_write(os, "%", 1);	47,675✔
397	p += 2;	47,675✔
398	continue;	47,675✔
399	}
400
401	assert(state->pos < state->nargs);	871,257✔
402
403	printf_arg_t *arg = &(state->args[state->pos]);	871,257✔
404	nchars += (*arg->fn)(os, state, arg);	871,257✔
405	p += arg->len;	871,257✔
406
407	state->pos++;	871,257✔
408	}
409	}
410
411	int nvc_vfprintf(ostream_t os, const char fmt, va_list ap)	664,047✔
412	{
413	printf_state_t state = {};	664,047✔
414
415	const char *end = NULL;	664,047✔
416	for (const char *p = fmt;;) {	664,047✔
417	while (p != '\0' && p != '%')	5,481,716✔
418	p++;	3,898,737✔
419
420	if (*p == '\0') {	1,582,979✔
421	end = p;	664,047✔
422	break;	664,047✔
423	}
424
425	printf_arg_t arg = {	918,932✔
426	.start = p,
427	.width = INT_MIN,
428	.precision = INT_MIN,
429	};
430	bool z_mod = false;	918,932✔
431	int l_mod = 0;	918,932✔
432	again:	1,233,728✔
433	switch (*++p) {	1,233,728✔
434	case 'l':	45,566✔
435	l_mod++;	45,566✔
436	goto again;	45,566✔
437	case 'z':	159,865✔
438	z_mod = true;	159,865✔
439	goto again;	159,865✔
440	case '-':	27,576✔
441	case '+':
442	case '.':
443	case '0'...'9':
444	goto again;	27,576✔
445	case '*':	81,789✔
446	arg.width = arg.precision;	81,789✔
447	arg.precision = va_arg(ap, int);	81,789✔
448	goto again;	81,789✔
449	case 'd':	331,341✔
450	case 'i':
451	case 'x':
452	case 'u':
453	case 'o':
454	if (z_mod) {	331,341✔
455	arg.value.z = va_arg(ap, size_t);	159,865✔
456	arg.fn = format_z;	159,865✔
457	}
458	else if (l_mod >= 2) {	171,476✔
459	arg.value.ll = va_arg(ap, long long);	×
UNCOV 460	arg.fn = format_ll;	×
461	}
462	else if (l_mod == 1) {	171,476✔
463	arg.value.l = va_arg(ap, long);	45,564✔
464	arg.fn = format_l;	45,564✔
465	}
466	else {
467	arg.value.i = va_arg(ap, int);	125,912✔
468	arg.fn = format_i;	125,912✔
469	}
470	break;
471	case 'c':	1,482✔
472	arg.value.i = va_arg(ap, int);	1,482✔
473	arg.fn = format_i;	1,482✔
474	break;	1,482✔
475	case 'e':	1,011✔
476	case 'f':
477	case 'g':
478	arg.value.f = va_arg(ap, double);	1,011✔
479	arg.fn = format_f;	1,011✔
480	break;	1,011✔
481	case 's':	536,531✔
482	arg.value.p = va_arg(ap, char *);	536,531✔
483	arg.fn = format_s;	536,531✔
484	break;	536,531✔
485	case 'p':	892✔
486	arg.value.p = va_arg(ap, void *);	892✔
487	if ((arg.fn = get_pointer_formatter(p[1])))	892✔
488	p++;	887✔
489	else
490	arg.fn = format_p;
491	break;
492	case '%':	47,675✔
493	p++;	47,675✔
494	continue;	47,675✔
UNCOV 495	default:	×
496	fatal_trace("unhandled character '%c' in format", *p);
497	}
498
499	arg.len = ++p - arg.start;	871,257✔
500
501	if (state.nargs == MAX_ARGS)	871,257✔
502	fatal_trace("maximum of %d printf arguments supported", MAX_ARGS);
503	else
504	state.args[state.nargs++] = arg;	871,257✔
505	}
506
507	return printf_interpret(os, &state, fmt, end);	1,328,094✔
508	}
509
510	int nvc_vprintf(const char *fmt, va_list ap)	8✔
511	{
512	return nvc_vfprintf(nvc_stdout(), fmt, ap);	8✔
513	}
514
515	int nvc_printf(const char *fmt, ...)	8✔
516	{
517	va_list ap;	8✔
518	va_start(ap, fmt);	8✔
519	const int nchars = nvc_vprintf(fmt, ap);	8✔
520	va_end(ap);	8✔
521	return nchars;	8✔
522	}
523
524	int nvc_fprintf(ostream_t os, const char fmt, ...)	180,106✔
525	{
526	va_list ap;	180,106✔
527	va_start(ap, fmt);	180,106✔
528	const int nchars = nvc_vfprintf(os, fmt, ap);	180,106✔
529	va_end(ap);	180,106✔
530	return nchars;	180,106✔
531	}
532
533	void stdio_ostream_write(const char buf, size_t len, void ctx)	1,222,583✔
534	{
535	FILE *f = ctx;	1,222,583✔
536	fwrite(buf, len, 1, f);	1,222,583✔
537	}	1,222,583✔
538
539	static void init_terminal_ostream(ostream_t os, FILE f)	7,420✔
540	{
541	os->callback = stdio_ostream_write;	7,420✔
542	os->context = f;	7,420✔
543	os->flags = 0;	7,420✔
544
545	const int saved_errno = errno;	7,420✔
546
547	if (isatty(fileno(f))) {	7,420✔
UNCOV 548	os->charset = utf8_terminal() ? CHARSET_UTF8 : CHARSET_ISO88591;	×
UNCOV 549	os->flags \|= OS_TERMINAL;	×
550	}
551	else
552	os->charset = CHARSET_ISO88591;	7,420✔
553
554	if (color_terminal())	7,420✔
555	os->flags \|= OS_COLOR;	4✔
556
557	errno = saved_errno;	7,420✔
558	}	7,420✔
559
560	ostream_t *nvc_stdout(void)	6,810✔
561	{
562	static ostream_t os;	6,810✔
563	INIT_ONCE(init_terminal_ostream(&os, stdout));	6,810✔
564	return &os;	6,810✔
565	}
566
567	ostream_t *nvc_stderr(void)	74,360✔
568	{
569	static ostream_t os;	74,360✔
570	INIT_ONCE(init_terminal_ostream(&os, stderr));	74,360✔
571	return &os;	74,360✔
572	}
573
574	char color_asprintf(const char fmt, ...)	31✔
575	{
576	LOCAL_TEXT_BUF tb = tb_new();	62✔
577	ostream_t os = { tb_ostream_write, tb, CHARSET_ISO88591, OS_COLOR };	31✔
578
579	va_list ap;	31✔
580	va_start(ap, fmt);	31✔
581	nvc_vfprintf(&os, fmt, ap);	31✔
582	va_end(ap);	31✔
583
584	return tb_claim(tb);	31✔
585	}

nickg / nvc / 27743617187

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