22274574463

Committed 22 Feb 2026 09:32AM UTC coverage: 92.515% (-0.03%) from 92.546%

Build # 22274574463

Build Type

push

github

Committed by

nickg

Commit Message

Fix quoting problems in install scripts

Issue #1419

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/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 <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 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,
         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) 2025-2026 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 <stdio.h>
28	#include <string.h>
29	#include <stdlib.h>
30	#include <unistd.h>
31	#include <limits.h>
32
33	#define ANSI_RESET 0
34	#define ANSI_BOLD 1
35	#define ANSI_FG_BLACK 30
36	#define ANSI_FG_RED 31
37	#define ANSI_FG_GREEN 32
38	#define ANSI_FG_YELLOW 33
39	#define ANSI_FG_BLUE 34
40	#define ANSI_FG_MAGENTA 35
41	#define ANSI_FG_CYAN 36
42	#define ANSI_FG_WHITE 37
43
44	#define MAX_ARGS 25
45
46	typedef struct _printf_state printf_state_t;
47	typedef struct _printf_arg printf_arg_t;
48
49	typedef union {
50	long long ll;
51	long l;
52	size_t z;
53	double f;
54	int i;
55	void *p;
56	} printf_value_t;
57
58	typedef int (fmt_fn_t)(ostream_t , printf_state_t , printf_arg_t );
59
60	typedef struct _printf_arg {
61	const char *start;
62	size_t len;
63	fmt_fn_t fn;
64	printf_value_t value;
65	int precision;
66	} printf_arg_t;
67
68	typedef struct _printf_state {
69	printf_arg_t args[MAX_ARGS];
70	unsigned nargs;
71	unsigned pos;
72	} printf_state_t;
73
74	typedef struct {
75	const char *name;
76	int value;
77	} color_escape_t;
78
79	static const color_escape_t escapes[] = {
80	{ "", ANSI_RESET },
81	{ "bold", ANSI_BOLD },
82	{ "black", ANSI_FG_BLACK },
83	{ "red", ANSI_FG_RED },
84	{ "green", ANSI_FG_GREEN },
85	{ "yellow", ANSI_FG_YELLOW },
86	{ "blue", ANSI_FG_BLUE },
87	{ "magenta", ANSI_FG_MAGENTA },
88	{ "cyan", ANSI_FG_CYAN },
89	{ "white", ANSI_FG_WHITE },
90	};
91
92	static int printf_interpret(ostream_t os, printf_state_t state,
93	const char fmt, const char end);
94
95	int ostream_write(ostream_t os, const char buf, size_t len)	1,600,691✔
96	{
97	(*os->callback)(buf, len, os->context);	1,600,691✔
98	return len;	1,600,691✔
99	}
100
101	int ostream_putc(ostream_t *os, char ch)	597,566✔
102	{
103	char buf[1] = { ch };	597,566✔
104	return ostream_write(os, buf, 1);	597,566✔
105	}
106
107	int ostream_puts(ostream_t os, const char str)	7,414✔
108	{
109	if (str == NULL)	7,414✔
110	return ostream_write(os, "(null)", 6);	×
111	else
112	return ostream_write(os, str, strlen(str));	7,414✔
113	}
114
115	static int format_ident(ostream_t os, printf_state_t state, printf_arg_t *arg)	56✔
116	{
117	ident_t id = arg->value.p;	56✔
118	return ostream_write(os, istr(id), ident_len(id));	56✔
119	}
120
121	static int format_ident_toupper(ostream_t os, printf_state_t state,	191✔
122	printf_arg_t *arg)
123	{
124	ident_t id = arg->value.p;	191✔
125	size_t len = ident_len(id);	191✔
126	const char *str = istr(id);	191✔
127	int nchars = 0;	191✔
128	char chunk[32];	191✔
129
130	for (int i = 0; i < len; i += sizeof(chunk)) {	382✔
131	const int tocopy = MIN(sizeof(chunk), len - i);	191✔
132	for (int j = 0; j < tocopy; j++)	838✔
133	chunk[j] = toupper_iso88591(str[i + j]);	647✔
134
135	nchars += ostream_write(os, chunk, tocopy);	191✔
136	}
137
138	return nchars;	191✔
139	}
140
141	static int format_type(ostream_t os, printf_state_t state, printf_arg_t *arg)	216✔
142	{
143	type_t type = arg->value.p;	216✔
144
145	// Print a fully qualified name if there is another type in the
146	// argument list with the same simple name
147
148	for (int i = 0; i < state->nargs; i++) {	415✔
149	const printf_arg_t *other = &(state->args[i]);	333✔
150	if (other != arg && other->fn == format_type)	333✔
151	return ostream_puts(os, type_pp2(type, other->value.p));	134✔
152	}
153
154	return ostream_puts(os, type_pp(type));	82✔
155	}
156
157	static int format_object_kind(ostream_t os, printf_state_t state,	×
158	printf_arg_t *arg)
159	{
160	object_t *obj = arg->value.p;	×
161	return ostream_puts(os, object_kind_str(obj));	×
162	}
163
164	static int format_mir(ostream_t os, printf_state_t state, printf_arg_t *arg)	9✔
165	{
166	mir_value_t *value = arg->value.p;	9✔
167	char buf[64];	9✔
168
169	switch (value->tag) {	9✔
170	case MIR_TAG_NODE:	×
171	checked_sprintf(buf, sizeof(buf), "%%%d", value->id);	×
172	break;	×
173	case MIR_TAG_CONST:	9✔
174	checked_sprintf(buf, sizeof(buf), "#%d",	9✔
175	value->id - (1 << (_MIR_ID_BITS - 1)));	9✔
176	break;	9✔
177	default:	×
178	checked_sprintf(buf, sizeof(buf), "{tag:%d, id:%x}",	×
179	value->tag, value->id);	×
180	break;	×
181	}
182
183	return ostream_puts(os, buf);	9✔
184	}
185
186	static int delegate(ostream_t os, printf_state_t s, printf_arg_t *arg, ...)	509,951✔
187	{
188	char spec[32];	509,951✔
189	assert(arg->len + 1 < sizeof(spec));	509,951✔
190	memcpy(spec, arg->start, arg->len);	509,951✔
191	spec[arg->len] = '\0';	509,951✔
192
193	va_list ap, ap2;	509,951✔
194	va_start(ap, arg);	509,951✔
195	va_copy(ap2, ap);	509,951✔
196
197	char small[64];	509,951✔
198	int req = vsnprintf(small, sizeof(small), spec, ap);	509,951✔
199
200	if (req + 1 > sizeof(small)) {	509,951✔
201	char *large = xmalloc(req + 1);	650✔
202	vsnprintf(large, req + 1, spec, ap2);	650✔
203	ostream_write(os, large, req);	650✔
204	free(large);	650✔
205	}
206	else
207	ostream_write(os, small, req);	509,301✔
208
209	va_end(ap);	509,951✔
210	va_end(ap2);	509,951✔
211	return req;	509,951✔
212	}
213
214	static fmt_fn_t get_pointer_formatter(char ch)	476✔
215	{
216	switch (ch) {	476✔
217	case 'i': return format_ident;
218	case 'I': return format_ident_toupper;	191✔
219	case 'T': return format_type;	216✔
220	case 'K': return format_object_kind;	×
221	case 'M': return format_mir;	9✔
222	default: return NULL;	4✔
223	}
224	}
225
226	static int ansi_escape(ostream_t os, printf_state_t state, const char **fmt)	152,228✔
227	{
228	bool has_format = false;	152,228✔
229	const char start = fmt;	152,228✔
230	do {	799,537✔
231	has_format \|= (**fmt == '%');	799,537✔
232	(*fmt)++;	799,537✔
233	} while (fmt != '\0' && fmt != '$');	799,537✔
234
235	if (**fmt == '\0')	152,228✔
236	return ostream_write(os, start, *fmt - start);	73✔
237
238	const char end = fmt;	152,155✔
239	(*fmt)++; // Advance past final '$'	152,155✔
240
241	size_t len = len = *fmt - start - 2;	152,155✔
242	const char *e = e = start + 1;	152,155✔
243	LOCAL_TEXT_BUF tb = NULL;	304,310✔
244
245	if (has_format) {	152,155✔
246	// Expand any embedded formatting inside the ANSI escape
247	tb = tb_new();	16,408✔
248
249	ostream_t aos = {	16,408✔
250	tb_ostream_write,
251	tb,
252	os->charset,	16,408✔
253	false,
254	};
255
256	printf_interpret(&aos, state, start + 1, end);	16,408✔
257
258	e = tb_get(tb);	16,408✔
259	len = tb_len(tb);	16,408✔
260	}
261
262	bool bold;	152,155✔
263	if ((bold = (*e == '!')))	152,155✔
264	++e, --len;	5✔
265
266	bool bright;	152,155✔
267	if ((bright = (*e == '+')))	152,155✔
268	++e, --len;	29✔
269
270	if (*e == '#') {	152,155✔
271	char *eptr;	1✔
272	int code = strtoul(e + 1, &eptr, 10);	1✔
273	if (eptr == e + len) {	1✔
274	char buf[16];	1✔
275	if (bold)	1✔
276	checked_sprintf(buf, sizeof(buf), "\033[1;38;5;%dm", code);	×
277	else
278	checked_sprintf(buf, sizeof(buf), "\033[38;5;%dm", code);	1✔
279
280	if (os->terminal)	1✔
281	ostream_puts(os, buf);	1✔
282
283	return 0;	1✔
284	}
285	}
286
287	if (strncmp(e, "link:", 5) == 0) {	152,154✔
288	const char *bel = strchr(e, '\07');	16,409✔
289
290	#ifndef __MINGW32__ // Winpty doesn't recognise these
291	if (os->terminal) {	16,409✔
292	ostream_puts(os, "\033]8;;");	2✔
293	ostream_write(os, e + 5, len - 5);	2✔
294	ostream_puts(os, "\033]8;;\07");	2✔
295	return e + len - bel - 1;	2✔
296	}
297	#endif
298
299	return ostream_write(os, bel + 1, e + len - bel - 1);	16,407✔
300	}
301
302	for (int i = 0; i < ARRAY_LEN(escapes); i++) {	513,650✔
303	if (strncmp(e, escapes[i].name, len) == 0) {	513,648✔
304	int code = escapes[i].value + (bright ? 60 : 0);	135,743✔
305	char buf[16];	135,743✔
306	if (bold)	135,743✔
307	checked_sprintf(buf, sizeof(buf), "\033[1;%dm", code);	4✔
308	else
309	checked_sprintf(buf, sizeof(buf), "\033[%dm", code);	135,739✔
310
311	if (os->terminal)	135,743✔
312	ostream_puts(os, buf);	5✔
313
314	return 0;	135,743✔
315	}
316	}
317
318	return ostream_write(os, start, *fmt - start);	2✔
319	}
320
321	static int format_z(ostream_t os, printf_state_t s, printf_arg_t *arg)	121,037✔
322	{
323	assert(arg->precision == INT_MIN);	121,037✔
324	return delegate(os, s, arg, arg->value.z);	121,037✔
325	}
326
327	static int format_ll(ostream_t os, printf_state_t s, printf_arg_t *arg)	×
328	{
329	if (arg->precision != INT_MIN)	×
330	return delegate(os, s, arg, arg->precision, arg->value.ll);	×
331	else
332	return delegate(os, s, arg, arg->value.ll);	×
333	}
334
335	static int format_l(ostream_t os, printf_state_t s, printf_arg_t *arg)	8,949✔
336	{
337	if (arg->precision != INT_MIN)	8,949✔
338	return delegate(os, s, arg, arg->precision, arg->value.l);	6,232✔
339	else
340	return delegate(os, s, arg, arg->value.l);	2,717✔
341	}
342
343	static int format_i(ostream_t os, printf_state_t s, printf_arg_t *arg)	66,638✔
344	{
345	if (arg->precision != INT_MIN)	66,638✔
346	return delegate(os, s, arg, arg->precision, arg->value.i);	10,145✔
347	else
348	return delegate(os, s, arg, arg->value.i);	56,493✔
349	}
350
351	static int format_f(ostream_t os, printf_state_t s, printf_arg_t *arg)	656✔
352	{
353	if (arg->precision != INT_MIN)	656✔
354	return delegate(os, s, arg, arg->precision, arg->value.f);	7✔
355	else
356	return delegate(os, s, arg, arg->value.f);	649✔
357	}
358
359	static int format_s(ostream_t os, printf_state_t s, printf_arg_t *arg)	312,667✔
360	{
361	if (arg->precision != INT_MIN)	312,667✔
362	return delegate(os, s, arg, arg->precision, arg->value.p);	41,213✔
363	else
364	return delegate(os, s, arg, arg->value.p);	271,454✔
365	}
366
367	static int format_p(ostream_t os, printf_state_t s, printf_arg_t *arg)	4✔
368	{
369	return delegate(os, s, arg, arg->value.p);	4✔
370	}
371
372	static int printf_interpret(ostream_t os, printf_state_t state,	438,874✔
373	const char fmt, const char end)
374	{
375	int nchars = 0;	438,874✔
376	for (const char *p = fmt;;) {	438,874✔
377	const char *start = p;	1,109,429✔
378	while (p < end && p != '%' && p != '$')	2,643,490✔
379	p++;	1,534,061✔
380
381	if (start < p)	1,109,429✔
382	nchars += ostream_write(os, start, p - start);	438,693✔
383
384	if (p == end)	1,109,429✔
385	return nchars;	438,874✔
386	else if (*p == '$') {	670,555✔
387	nchars += ansi_escape(os, state, &p);	152,228✔
388	continue;	152,228✔
389	}
390	else if (p == '%' && (p + 1) == '%') {	518,327✔
391	nchars += ostream_write(os, "%", 1);	7,904✔
392	p += 2;	7,904✔
393	continue;	7,904✔
394	}
395
396	assert(state->pos < state->nargs);	510,423✔
397
398	printf_arg_t *arg = &(state->args[state->pos]);	510,423✔
399	nchars += (*arg->fn)(os, state, arg);	510,423✔
400	p += arg->len;	510,423✔
401
402	state->pos++;	510,423✔
403	}
404	}
405
406	int nvc_vfprintf(ostream_t os, const char fmt, va_list ap)	422,466✔
407	{
408	printf_state_t state = {};	422,466✔
409
410	const char *end = NULL;	422,466✔
411	for (const char *p = fmt;;) {	422,466✔
412	while (p != '\0' && p != '%')	3,049,175✔
413	p++;	2,108,382✔
414
415	if (*p == '\0') {	940,793✔
416	end = p;	422,466✔
417	break;	422,466✔
418	}
419
420	printf_arg_t arg = { .start = p, .precision = INT_MIN };	518,327✔
421	bool z_mod = false;	518,327✔
422	int l_mod = 0;	518,327✔
423	again:	724,275✔
424	switch (*++p) {	724,275✔
425	case 'l':	8,951✔
426	l_mod++;	8,951✔
427	goto again;	8,951✔
428	case 'z':	121,037✔
429	z_mod = true;	121,037✔
430	goto again;	121,037✔
431	case '-':	18,363✔
432	case '+':
433	case '.':
434	case '0'...'9':
435	goto again;	18,363✔
436	case '*':	57,597✔
437	arg.precision = va_arg(ap, int);	57,597✔
438	goto again;	57,597✔
439	case 'd':	195,567✔
440	case 'i':
441	case 'x':
442	case 'u':
443	if (z_mod) {	195,567✔
444	arg.value.z = va_arg(ap, size_t);	121,037✔
445	arg.fn = format_z;	121,037✔
446	}
447	else if (l_mod >= 2) {	74,530✔
448	arg.value.ll = va_arg(ap, long long);	×
449	arg.fn = format_ll;	×
450	}
451	else if (l_mod == 1) {	74,530✔
452	arg.value.l = va_arg(ap, long);	8,949✔
453	arg.fn = format_l;	8,949✔
454	}
455	else {
456	arg.value.i = va_arg(ap, int);	65,581✔
457	arg.fn = format_i;	65,581✔
458	}
459	break;
460	case 'c':	1,057✔
461	arg.value.i = va_arg(ap, int);	1,057✔
462	arg.fn = format_i;	1,057✔
463	break;	1,057✔
464	case 'e':	656✔
465	case 'f':
466	case 'g':
467	arg.value.f = va_arg(ap, double);	656✔
468	arg.fn = format_f;	656✔
469	break;	656✔
470	case 's':	312,667✔
471	arg.value.p = va_arg(ap, char *);	312,667✔
472	arg.fn = format_s;	312,667✔
473	break;	312,667✔
474	case 'p':	476✔
475	arg.value.p = va_arg(ap, void *);	476✔
476	if ((arg.fn = get_pointer_formatter(p[1])))	476✔
477	p++;	472✔
478	else
479	arg.fn = format_p;
480	break;
481	case '%':	7,904✔
482	p++;	7,904✔
483	continue;	7,904✔
484	default:	×
485	fatal_trace("unhandled character '%c' in format", *p);
486	}
487
488	arg.len = ++p - arg.start;	510,423✔
489
490	if (state.nargs == MAX_ARGS)	510,423✔
491	fatal_trace("maximum of %d printf arguments supported", MAX_ARGS);
492	else
493	state.args[state.nargs++] = arg;	510,423✔
494	}
495
496	return printf_interpret(os, &state, fmt, end);	844,932✔
497	}
498
499	int nvc_vprintf(const char *fmt, va_list ap)	10✔
500	{
501	return nvc_vfprintf(nvc_stdout(), fmt, ap);	10✔
502	}
503
504	int nvc_printf(const char *fmt, ...)	10✔
505	{
506	va_list ap;	10✔
507	va_start(ap, fmt);	10✔
508	const int nchars = nvc_vprintf(fmt, ap);	10✔
509	va_end(ap);	10✔
510	return nchars;	10✔
511	}
512
513	int nvc_fprintf(ostream_t os, const char fmt, ...)	127,861✔
514	{
515	va_list ap;	127,861✔
516	va_start(ap, fmt);	127,861✔
517	const int nchars = nvc_vfprintf(os, fmt, ap);	127,861✔
518	va_end(ap);	127,861✔
519	return nchars;	127,861✔
520	}
521
522	void stdio_ostream_write(const char buf, size_t len, void ctx)	867,491✔
523	{
524	FILE *f = ctx;	867,491✔
525	fwrite(buf, len, 1, f);	867,491✔
526	}	867,491✔
527
528	static void init_terminal_ostream(ostream_t os, FILE f)	7✔
529	{
530	os->callback = stdio_ostream_write;	7✔
531	os->context = f;	7✔
532
533	if (isatty(fileno(f))) {	7✔
534	os->charset = utf8_terminal() ? CHARSET_UTF8 : CHARSET_ISO88591;	×
535	os->terminal = color_terminal();	×
536	}
537	else {
538	os->charset = CHARSET_ISO88591;	7✔
539	os->terminal = false;	7✔
540	}
541	}	7✔
542
543	ostream_t *nvc_stdout(void)	16✔
544	{
545	static ostream_t os;	16✔
546	INIT_ONCE(init_terminal_ostream(&os, stdout));	16✔
547	return &os;	16✔
548	}
549
550	ostream_t *nvc_stderr(void)	51✔
551	{
552	static ostream_t os;	51✔
553	INIT_ONCE(init_terminal_ostream(&os, stderr));	51✔
554	return &os;	51✔
555	}
556
557	char color_asprintf(const char fmt, ...)	23✔
558	{
559	LOCAL_TEXT_BUF tb = tb_new();	46✔
560	ostream_t os = { tb_ostream_write, tb, CHARSET_ISO88591, color_terminal() };	23✔
561
562	va_list ap;	23✔
563	va_start(ap, fmt);	23✔
564	nvc_vfprintf(&os, fmt, ap);	23✔
565	va_end(ap);	23✔
566
567	return tb_claim(tb);	23✔
568	}

nickg / nvc / 22274574463

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