summaryrefslogtreecommitdiff
path: root/fonts/utilities/ps2mf/ps2mfutl.c
blob: ae8579bd1b838115ac0f7e4b99e604bbe0d8f755 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
/* ps2mfutl.c */

#include <stdio.h>
#ifndef AIX
#include <stdlib.h>
#endif
#include <string.h>
#include "defines.h"
#include "mymalloc.h"
#include "ps2mf.h"
#include "ps2mfutl.h"
#ifdef MSDOS
#include <float.h>
#endif


#ifdef __STDC__
void error (char * s)
#else
void error (s)
char * s;
#endif
{
	fprintf (stderr, "\n%s\n", s);
	if (obuffer [0])
	{
		fprintf (stderr, "%s\n", obuffer);
		while (param > buffer)
		{
			fprintf (stderr, " ");
			param --;
		}
		fprintf (stderr, "^n\n");
	}
	if (* s == '!') exit (UNSUCCESSFUL);
}

#ifdef __STDC__
int transform (int x, int y)
#else
int transform (x, y)
int x, y;
#endif
{
	double acc;

	acc = 1.0 * x + 0.0 * y;
	/*    ^=efactor ^=slant */
	return ((int) (acc >= 0.0 ? acc + 0.5 : acc - 0.5));
}

#ifdef __STDC
int get_line (FILE * in_file)
#else
int get_line (in_file)
FILE * in_file;
#endif
{
	char * p;
	int c;

	param = buffer;
	do c = getc (in_file);
	while (c == ' ' || c == '\r' || c == '\n');
	ungetc (c, in_file);
	for (p = buffer; (c = getc (in_file)) != EOF && c != '\n'
	     && c != '\r'; /* skip */) * p ++ = c;
	if (buffer [0] == '%') return (get_line (in_file));
	* p = 0;
	strcpy (obuffer, buffer);
	if (p == buffer && c == EOF) return (0);
	return (1);
}

#ifdef __STDC
void un_get_line (FILE * in_file)
#else
void un_get_line (in_file)
FILE * in_file;
#endif
{
	char * p;
	int c;

	for (p = obuffer; * p; p ++) /* skip */;
	for (* p = '\n'; p >= obuffer; p --)
	{
		if (! ungetc (* p, in_file) == * p)
		error ("! could not unget");
	}
}

#ifdef __STDC__
int get_token (FILE * in_file)
#else
int get_token (in_file)
FILE * in_file;
#endif
{
	if (! * param) if (! get_line (in_file)) return (0);
	return (1);
}

/* Routines for input parsing: param_new_string, param_string, param_num,
   param_float, expect */

#ifdef __STDC__
bool is_in_delimiters (char c)
#   else
bool is_in_delimiters (c)
char c;
#	endif
{
	if (c == '{' || c == '[' || c == '('
	    || c == ')' || c == ']' || c == '}') return (TRUE);
	return (FALSE);
}

char * param_new_string ()
{
	char * p, * q;

	p = param;
	if (is_in_delimiters (* p)) p ++;
	else while (* p > ' ' && ! is_in_delimiters (* p)) p ++;
	q = my_malloc ((int) (p - param + 1));
	if (* p != 0) * p ++ = 0;
	strcpy (q, param);
	while (* p && * p <= ' ') p ++;
	param = p;
	return (q);
}
 
char * param_string ()
{
	char * p, * q;

	p = param;
	if (is_in_delimiters (* p)) p ++;
	else while (* p > ' ' && ! is_in_delimiters (* p)) p ++;
	q = param;
	if (* p != 0) * p ++ = 0;
	while (* p && * p <= ' ') p ++;
	param = p;
	return (q);
}

int param_oct ()
{
	char * p;
	int i;

	p = param_string ();
	if (sscanf (p, "%o", & i) != 1) error ("! octal number expected");
	return (i);
}

int param_hex ()
{
	char * p;
	int i;

	p = param_string ();
	if (sscanf (p, "%x", & i) != 1) error ("! hexadecimal number expected");
	return (i);
}

int param_num ()
{
	char * p;
	int i;

	p = param_string ();
	if (sscanf (p, "%d", & i) != 1) error ("! integer expected");
	return (i);
}

float param_float ()
{
	char * p;
	float f;

	p = param_string ();
	if (sscanf (p, "%f", & f) != 1) error ("! number expected");
	return (f);
}

#ifdef __STDC__
void expect (char * s)
#else
void expect (s)
char * s;
#endif
{
	if (! strequ (param_string (), s))
	{
		fprintf (stderr, "%s expected.", s);
		error ("! syntax error");
	}
}

#ifdef __STDC__
AFM_info_tp * find_AFM_info_for (char * p)
#else
AFM_info_tp * find_AFM_info_for (p)
char * p;
#endif
{
	AFM_info_tp * ai;

	for (ai = AFM_chars; ai; ai = ai -> next)
	{
		if (strequ (p, ai -> AFM_name)) return (ai);
	}
	return (NULL);
}