tcommon.c - plan9port - [fork] Plan 9 from user space
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tcommon.c (6748B)
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1 #include <u.h>
2 #include <libc.h>
3 #include <bio.h>
4 #include <ctype.h>
5 #include "common.h"
6 #include "comments.h"
7 #include "path.h"
8
9 struct strtab charcode[FONTSIZE] = {
10 {4, "\\000"}, {4, "\\001"}, {4, "\\002"}, {4, "\\003"},
11 {4, "\\004"}, {4, "\\005"}, {4, "\\006"}, {4, "\\007"},
12 {4, "\\010"}, {4, "\\011"}, {4, "\\012"}, {4, "\\013"},
13 {4, "\\014"}, {4, "\\015"}, {4, "\\016"}, {4, "\\017"},
14 {4, "\\020"}, {4, "\\021"}, {4, "\\022"}, {4, "\\023"},
15 {4, "\\024"}, {4, "\\025"}, {4, "\\026"}, {4, "\\027"},
16 {4, "\\030"}, {4, "\\031"}, {4, "\\032"}, {4, "\\033"},
17 {4, "\\034"}, {4, "\\035"}, {4, "\\036"}, {4, "\\037"},
18 {1, " "}, {1, "!"}, {1, "\""}, {1, "#"},
19 {1, "$"}, {1, "%"}, {1, "&"}, {1, "'"},
20 {2, "\\("}, {2, "\\)"}, {1, "*"}, {1, "+"},
21 {1, ","}, {1, "-"}, {1, "."}, {1, "/"},
22 {1, "0"}, {1, "1"}, {1, "2"}, {1, "3"},
23 {1, "4"}, {1, "5"}, {1, "6"}, {1, "7"},
24 {1, "8"}, {1, "9"}, {1, ":"}, {1, ";"},
25 {1, "<"}, {1, "="}, {1, ">"}, {1, "?"},
26 {1, "@"}, {1, "A"}, {1, "B"}, {1, "C"},
27 {1, "D"}, {1, "E"}, {1, "F"}, {1, "G"},
28 {1, "H"}, {1, "I"}, {1, "J"}, {1, "K"},
29 {1, "L"}, {1, "M"}, {1, "N"}, {1, "O"},
30 {1, "P"}, {1, "Q"}, {1, "R"}, {1, "S"},
31 {1, "T"}, {1, "U"}, {1, "V"}, {1, "W"},
32 {1, "X"}, {1, "Y"}, {1, "Z"}, {1, "["},
33 {2, "\\\\"}, {1, "]"}, {1, "^"}, {1, "_"},
34 {1, "`"}, {1, "a"}, {1, "b"}, {1, "c"},
35 {1, "d"}, {1, "e"}, {1, "f"}, {1, "g"},
36 {1, "h"}, {1, "i"}, {1, "j"}, {1, "k"},
37 {1, "l"}, {1, "m"}, {1, "n"}, {1, "o"},
38 {1, "p"}, {1, "q"}, {1, "r"}, {1, "s"},
39 {1, "t"}, {1, "u"}, {1, "v"}, {1, "w"},
40 {1, "x"}, {1, "y"}, {1, "z"}, {1, "{"},
41 {1, "|"}, {1, "}"}, {1, "~"}, {4, "\\177"},
42 {4, "\\200"}, {4, "\\201"}, {4, "\\202"}, {4, "\\203"},
43 {4, "\\204"}, {4, "\\205"}, {4, "\\206"}, {4, "\\207"},
44 {4, "\\210"}, {4, "\\211"}, {4, "\\212"}, {4, "\\213"},
45 {4, "\\214"}, {4, "\\215"}, {4, "\\216"}, {4, "\\217"},
46 {4, "\\220"}, {4, "\\221"}, {4, "\\222"}, {4, "\\223"},
47 {4, "\\224"}, {4, "\\225"}, {4, "\\226"}, {4, "\\227"},
48 {4, "\\230"}, {4, "\\231"}, {4, "\\232"}, {4, "\\233"},
49 {4, "\\234"}, {4, "\\235"}, {4, "\\236"}, {4, "\\237"},
50 {4, "\\240"}, {4, "\\241"}, {4, "\\242"}, {4, "\\243"},
51 {4, "\\244"}, {4, "\\245"}, {4, "\\246"}, {4, "\\247"},
52 {4, "\\250"}, {4, "\\251"}, {4, "\\252"}, {4, "\\253"},
53 {4, "\\254"}, {4, "\\255"}, {4, "\\256"}, {4, "\\257"},
54 {4, "\\260"}, {4, "\\261"}, {4, "\\262"}, {4, "\\263"},
55 {4, "\\264"}, {4, "\\265"}, {4, "\\266"}, {4, "\\267"},
56 {4, "\\270"}, {4, "\\271"}, {4, "\\272"}, {4, "\\273"},
57 {4, "\\274"}, {4, "\\275"}, {4, "\\276"}, {4, "\\277"},
58 {4, "\\300"}, {4, "\\301"}, {4, "\\302"}, {4, "\\303"},
59 {4, "\\304"}, {4, "\\305"}, {4, "\\306"}, {4, "\\307"},
60 {4, "\\310"}, {4, "\\311"}, {4, "\\312"}, {4, "\\313"},
61 {4, "\\314"}, {4, "\\315"}, {4, "\\316"}, {4, "\\317"},
62 {4, "\\320"}, {4, "\\321"}, {4, "\\322"}, {4, "\\323"},
63 {4, "\\324"}, {4, "\\325"}, {4, "\\326"}, {4, "\\327"},
64 {4, "\\330"}, {4, "\\331"}, {4, "\\332"}, {4, "\\333"},
65 {4, "\\334"}, {4, "\\335"}, {4, "\\336"}, {4, "\\337"},
66 {4, "\\340"}, {4, "\\341"}, {4, "\\342"}, {4, "\\343"},
67 {4, "\\344"}, {4, "\\345"}, {4, "\\346"}, {4, "\\347"},
68 {4, "\\350"}, {4, "\\351"}, {4, "\\352"}, {4, "\\353"},
69 {4, "\\354"}, {4, "\\355"}, {4, "\\356"}, {4, "\\357"},
70 {4, "\\360"}, {4, "\\361"}, {4, "\\362"}, {4, "\\363"},
71 {4, "\\364"}, {4, "\\365"}, {4, "\\366"}, {4, "\\367"},
72 {4, "\\370"}, {4, "\\371"}, {4, "\\372"}, {4, "\\373"},
73 {4, "\\374"}, {4, "\\375"}, {4, "\\376"}, {4, "\\377"}
74 };
75
76 static BOOLEAN in_string = FALSE;
77 int char_no = 0;
78 int line_no = 0;
79 int page_no = 0; /* page number in a document */
80 int pages_printed = 0;
81 static int pplistmaxsize=0;
82
83 static unsigned char *pplist=0; /* bitmap list for storing pages to print */
84
85 void
86 pagelist(char *list) {
87 char c;
88 int n, m;
89 int state, start;
90
91 if (list == 0) return;
92 state = 1;
93 start = 0;
94 while ((c=*list) != '\0') {
95 n = 0;
96 while (isdigit((uchar)c)) {
97 n = n * 10 + c - '0';
98 c = *++list;
99 }
100 switch (state) {
101 case 1:
102 start = n;
103 case 2:
104 if (n/8+1 > pplistmaxsize) {
105 pplistmaxsize = n/8+1;
106 pplist = galloc(pplist, n/8+1, "page list");
107 }
108 for (m=start; m<=n; m++)
109 pplist[m/8] |= 1<<(m%8);
110 break;
111 }
112 switch (c) {
113 case '-':
114 state = 2;
115 list++;
116 break;
117 case ',':
118 state = 1;
119 list++;
120 break;
121 case '\0':
122 break;
123 }
124 }
125 }
126
127 BOOLEAN
128 pageon(void) {
129 extern BOOLEAN debug;
130 static BOOLEAN privdebug = FALSE;
131
132 if (pplist == 0 && page_no != 0) {
133 if (privdebug && !debug) {
134 privdebug = FALSE;
135 debug = TRUE;
136 }
137 return(TRUE); /* no page list, print all pages */
138 }
139 if (page_no/8 < pplistmaxsize && (pplist[page_no/8] & 1<<(page_no%8))) {
140 if (privdebug && !debug) {
141 privdebug = FALSE;
142 debug = TRUE;
143 }
144 return(TRUE);
145 } else {
146 if (!privdebug && debug) {
147 privdebug = TRUE;
148 debug = FALSE;
149 }
150 return(FALSE);
151 }
152 }
153
154 static int stringhpos, stringvpos;
155
156 void
157 startstring(void) {
158 if (!in_string) {
159 stringhpos = hpos;
160 stringvpos = vpos;
161 if (pageon()) Bprint(Bstdout, "(");
162 in_string = 1;
163 }
164 }
165
166 void
167 endstring(void) {
168 if (in_string) {
169 if (pageon()) Bprint(Bstdout, ") %d %d w\n", stringhpos, stringvpos);
170 in_string = 0;
171 }
172 }
173
174 BOOLEAN
175 isinstring(void) {
176 return(in_string);
177 }
178
179 void
180 startpage(void) {
181 ++char_no;
182 ++line_no;
183 ++page_no;
184 if (pageon()) {
185 ++pages_printed;
186 Bprint(Bstdout, "%s %d %d\n", PAGE, page_no, pages_printed);
187 Bprint(Bstdout, "/saveobj save def\n");
188 Bprint(Bstdout, "mark\n");
189 Bprint(Bstdout, "%d pagesetup\n", pages_printed);
190 }
191 }
192
193 void
194 endpage(void) {
195 endstring();
196 curpostfontid = -1;
197 line_no = 0;
198 char_no = 0;
199 if (pageon()) {
200 Bprint(Bstdout, "cleartomark\n");
201 Bprint(Bstdout, "showpage\n");
202 Bprint(Bstdout, "saveobj restore\n");
203 Bprint(Bstdout, "%s %d %d\n", ENDPAGE, page_no, pages_printed);
204 }
205 }
206
207 /* This was taken from postprint */
208
209 int
210 cat(char *filename) {
211 Biobuf *bfile;
212 Biobuf *Bfile;
213 int n;
214 static char buf[Bsize];
215
216 if ((bfile = Bopen(filename, OREAD)) == 0) {
217 return(1);
218 }
219 Bfile = bfile; /* &(bfile->Biobufhdr); */
220 while ((n=Bread(Bfile, buf, Bsize)) > 0) {
221 if (Bwrite(Bstdout, buf, n) != n)
222 break;
223 }
224 Bterm(Bfile);
225 if (n != 0) {
226 return(1);
227 }
228 return(0);
229 }
230 extern int debug;
231 void *
232 galloc(void *ptr, int size, char *perstr) {
233 void *x;
234
235 if ((x=realloc(ptr, size)) == 0) {
236 perror(perstr);
237 exits("malloc");
238 }
239 return(x);
240 }
241
242 static char *errorstrings[] = {
243 "", /* NONE */
244 "WARNING",
245 "FATAL"
246 };
247
248 char *programname;
249 char *inputfilename = "<stdin>";
250 int inputlineno;
251
252 void
253 error(int errtype, char *fmt, ...) {
254 va_list arg;
255
256 Bflush(Bstdout);
257 Bflush(Bstderr);
258 fprint(2, "%s: %s:%d :%s: ", programname, inputfilename, inputlineno, errorstrings[errtype]);
259 va_start(arg, fmt);
260 vfprint(2, fmt, arg);
261 va_end(arg);
262 if (errtype == FATAL)
263 exits("fatal error");
264 }