| Commit | Line | Data |
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| 8d063cd8 |
1 | /* $Header: form.c,v 1.0 87/12/18 13:05:07 root Exp $ |
| 2 | * |
| 3 | * $Log: form.c,v $ |
| 4 | * Revision 1.0 87/12/18 13:05:07 root |
| 5 | * Initial revision |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #include "handy.h" |
| 10 | #include "EXTERN.h" |
| 11 | #include "search.h" |
| 12 | #include "util.h" |
| 13 | #include "perl.h" |
| 14 | |
| 15 | /* Forms stuff */ |
| 16 | |
| 17 | #define CHKLEN(allow) \ |
| 18 | if (d - orec->o_str + (allow) >= curlen) { \ |
| 19 | curlen = d - orec->o_str; \ |
| 20 | GROWSTR(&orec->o_str,&orec->o_len,orec->o_len + (allow)); \ |
| 21 | d = orec->o_str + curlen; /* in case it moves */ \ |
| 22 | curlen = orec->o_len - 2; \ |
| 23 | } |
| 24 | |
| 25 | format(orec,fcmd) |
| 26 | register struct outrec *orec; |
| 27 | register FCMD *fcmd; |
| 28 | { |
| 29 | register char *d = orec->o_str; |
| 30 | register char *s; |
| 31 | register int curlen = orec->o_len - 2; |
| 32 | register int size; |
| 33 | char tmpchar; |
| 34 | char *t; |
| 35 | CMD mycmd; |
| 36 | STR *str; |
| 37 | char *chophere; |
| 38 | |
| 39 | mycmd.c_type = C_NULL; |
| 40 | orec->o_lines = 0; |
| 41 | for (; fcmd; fcmd = fcmd->f_next) { |
| 42 | CHKLEN(fcmd->f_presize); |
| 43 | for (s=fcmd->f_pre; *s;) { |
| 44 | if (*s == '\n') { |
| 45 | while (d > orec->o_str && (d[-1] == ' ' || d[-1] == '\t')) |
| 46 | d--; |
| 47 | if (fcmd->f_flags & FC_NOBLANK && |
| 48 | (d == orec->o_str || d[-1] == '\n') ) { |
| 49 | orec->o_lines--; /* don't print blank line */ |
| 50 | break; |
| 51 | } |
| 52 | } |
| 53 | *d++ = *s++; |
| 54 | } |
| 55 | switch (fcmd->f_type) { |
| 56 | case F_NULL: |
| 57 | orec->o_lines++; |
| 58 | break; |
| 59 | case F_LEFT: |
| 60 | str = eval(fcmd->f_expr,Null(char***),(double*)0); |
| 61 | s = str_get(str); |
| 62 | size = fcmd->f_size; |
| 63 | CHKLEN(size); |
| 64 | chophere = Nullch; |
| 65 | while (size && *s && *s != '\n') { |
| 66 | size--; |
| 67 | if ((*d++ = *s++) == ' ') |
| 68 | chophere = s; |
| 69 | } |
| 70 | if (size) |
| 71 | chophere = s; |
| 72 | if (fcmd->f_flags & FC_CHOP) { |
| 73 | if (!chophere) |
| 74 | chophere = s; |
| 75 | size += (s - chophere); |
| 76 | d -= (s - chophere); |
| 77 | if (fcmd->f_flags & FC_MORE && |
| 78 | *chophere && strNE(chophere,"\n")) { |
| 79 | while (size < 3) { |
| 80 | d--; |
| 81 | size++; |
| 82 | } |
| 83 | while (d[-1] == ' ' && size < fcmd->f_size) { |
| 84 | d--; |
| 85 | size++; |
| 86 | } |
| 87 | *d++ = '.'; |
| 88 | *d++ = '.'; |
| 89 | *d++ = '.'; |
| 90 | } |
| 91 | s = chophere; |
| 92 | while (*chophere == ' ' || *chophere == '\n') |
| 93 | chophere++; |
| 94 | str_chop(str,chophere); |
| 95 | } |
| 96 | if (fcmd->f_next && fcmd->f_next->f_pre[0] == '\n') |
| 97 | size = 0; /* no spaces before newline */ |
| 98 | while (size) { |
| 99 | size--; |
| 100 | *d++ = ' '; |
| 101 | } |
| 102 | break; |
| 103 | case F_RIGHT: |
| 104 | t = s = str_get(eval(fcmd->f_expr,Null(char***),(double*)0)); |
| 105 | size = fcmd->f_size; |
| 106 | CHKLEN(size); |
| 107 | chophere = Nullch; |
| 108 | while (size && *s && *s != '\n') { |
| 109 | size--; |
| 110 | if (*s++ == ' ') |
| 111 | chophere = s; |
| 112 | } |
| 113 | if (size) |
| 114 | chophere = s; |
| 115 | if (fcmd->f_flags & FC_CHOP) { |
| 116 | if (!chophere) |
| 117 | chophere = s; |
| 118 | size += (s - chophere); |
| 119 | d -= (s - chophere); |
| 120 | if (fcmd->f_flags & FC_MORE && |
| 121 | *chophere && strNE(chophere,"\n")) { |
| 122 | while (size < 3) { |
| 123 | d--; |
| 124 | size++; |
| 125 | } |
| 126 | while (d[-1] == ' ' && size < fcmd->f_size) { |
| 127 | d--; |
| 128 | size++; |
| 129 | } |
| 130 | *d++ = '.'; |
| 131 | *d++ = '.'; |
| 132 | *d++ = '.'; |
| 133 | } |
| 134 | s = chophere; |
| 135 | while (*chophere == ' ' || *chophere == '\n') |
| 136 | chophere++; |
| 137 | str_chop(str,chophere); |
| 138 | } |
| 139 | tmpchar = *s; |
| 140 | *s = '\0'; |
| 141 | while (size) { |
| 142 | size--; |
| 143 | *d++ = ' '; |
| 144 | } |
| 145 | size = s - t; |
| 146 | bcopy(t,d,size); |
| 147 | d += size; |
| 148 | *s = tmpchar; |
| 149 | break; |
| 150 | case F_CENTER: { |
| 151 | int halfsize; |
| 152 | |
| 153 | t = s = str_get(eval(fcmd->f_expr,Null(char***),(double*)0)); |
| 154 | size = fcmd->f_size; |
| 155 | CHKLEN(size); |
| 156 | chophere = Nullch; |
| 157 | while (size && *s && *s != '\n') { |
| 158 | size--; |
| 159 | if (*s++ == ' ') |
| 160 | chophere = s; |
| 161 | } |
| 162 | if (size) |
| 163 | chophere = s; |
| 164 | if (fcmd->f_flags & FC_CHOP) { |
| 165 | if (!chophere) |
| 166 | chophere = s; |
| 167 | size += (s - chophere); |
| 168 | d -= (s - chophere); |
| 169 | if (fcmd->f_flags & FC_MORE && |
| 170 | *chophere && strNE(chophere,"\n")) { |
| 171 | while (size < 3) { |
| 172 | d--; |
| 173 | size++; |
| 174 | } |
| 175 | while (d[-1] == ' ' && size < fcmd->f_size) { |
| 176 | d--; |
| 177 | size++; |
| 178 | } |
| 179 | *d++ = '.'; |
| 180 | *d++ = '.'; |
| 181 | *d++ = '.'; |
| 182 | } |
| 183 | s = chophere; |
| 184 | while (*chophere == ' ' || *chophere == '\n') |
| 185 | chophere++; |
| 186 | str_chop(str,chophere); |
| 187 | } |
| 188 | tmpchar = *s; |
| 189 | *s = '\0'; |
| 190 | halfsize = size / 2; |
| 191 | while (size > halfsize) { |
| 192 | size--; |
| 193 | *d++ = ' '; |
| 194 | } |
| 195 | size = s - t; |
| 196 | bcopy(t,d,size); |
| 197 | d += size; |
| 198 | *s = tmpchar; |
| 199 | if (fcmd->f_next && fcmd->f_next->f_pre[0] == '\n') |
| 200 | size = 0; /* no spaces before newline */ |
| 201 | else |
| 202 | size = halfsize; |
| 203 | while (size) { |
| 204 | size--; |
| 205 | *d++ = ' '; |
| 206 | } |
| 207 | break; |
| 208 | } |
| 209 | case F_LINES: |
| 210 | str = eval(fcmd->f_expr,Null(char***),(double*)0); |
| 211 | s = str_get(str); |
| 212 | size = str_len(str); |
| 213 | CHKLEN(size); |
| 214 | orec->o_lines += countlines(s); |
| 215 | bcopy(s,d,size); |
| 216 | d += size; |
| 217 | break; |
| 218 | } |
| 219 | } |
| 220 | *d++ = '\0'; |
| 221 | } |
| 222 | |
| 223 | countlines(s) |
| 224 | register char *s; |
| 225 | { |
| 226 | register int count = 0; |
| 227 | |
| 228 | while (*s) { |
| 229 | if (*s++ == '\n') |
| 230 | count++; |
| 231 | } |
| 232 | return count; |
| 233 | } |
| 234 | |
| 235 | do_write(orec,stio) |
| 236 | struct outrec *orec; |
| 237 | register STIO *stio; |
| 238 | { |
| 239 | FILE *ofp = stio->fp; |
| 240 | |
| 241 | #ifdef DEBUGGING |
| 242 | if (debug & 256) |
| 243 | fprintf(stderr,"left=%d, todo=%d\n",stio->lines_left, orec->o_lines); |
| 244 | #endif |
| 245 | if (stio->lines_left < orec->o_lines) { |
| 246 | if (!stio->top_stab) { |
| 247 | STAB *topstab; |
| 248 | |
| 249 | if (!stio->top_name) |
| 250 | stio->top_name = savestr("top"); |
| 251 | topstab = stabent(stio->top_name,FALSE); |
| 252 | if (!topstab || !topstab->stab_form) { |
| 253 | stio->lines_left = 100000000; |
| 254 | goto forget_top; |
| 255 | } |
| 256 | stio->top_stab = topstab; |
| 257 | } |
| 258 | if (stio->lines_left >= 0) |
| 259 | putc('\f',ofp); |
| 260 | stio->lines_left = stio->page_len; |
| 261 | stio->page++; |
| 262 | format(&toprec,stio->top_stab->stab_form); |
| 263 | fputs(toprec.o_str,ofp); |
| 264 | stio->lines_left -= toprec.o_lines; |
| 265 | } |
| 266 | forget_top: |
| 267 | fputs(orec->o_str,ofp); |
| 268 | stio->lines_left -= orec->o_lines; |
| 269 | } |
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