405 lines
8.2 KiB
C
405 lines
8.2 KiB
C
/* t4.c: read table specification */
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# include "t.h"
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int oncol;
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void
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getspec(void)
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{
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int icol, i;
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qcol = findcol() + 1;/* must allow one extra for line at right */
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garray(qcol);
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sep[-1] = -1;
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for (icol = 0; icol < qcol; icol++) {
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sep[icol] = -1;
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evenup[icol] = 0;
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cll[icol][0] = 0;
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for (i = 0; i < MAXHEAD; i++) {
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csize[icol][i][0] = 0;
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vsize[icol][i][0] = 0;
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font[icol][i][0] = lefline[icol][i] = 0;
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flags[icol][i] = 0;
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style[icol][i] = 'l';
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}
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}
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for (i = 0; i < MAXHEAD; i++)
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lefline[qcol][i] = 0; /* fixes sample55 looping */
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nclin = ncol = 0;
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oncol = 0;
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left1flg = rightl = 0;
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readspec();
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Bprint(&tabout, ".rm");
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for (i = 0; i < ncol; i++)
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Bprint(&tabout, " %2s", reg(i, CRIGHT));
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Bprint(&tabout, "\n");
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}
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void
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readspec(void)
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{
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int icol, c, sawchar, stopc, i;
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char sn[10], *snp, *temp;
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sawchar = icol = 0;
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while (c = get1char()) {
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switch (c) {
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default:
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if (c != tab) {
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char buf[64];
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sprint(buf, "bad table specification character %c", c);
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error(buf);
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}
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case ' ': /* note this is also case tab */
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continue;
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case '\n':
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if (sawchar == 0)
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continue;
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case ',':
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case '.': /* end of table specification */
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ncol = max(ncol, icol);
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if (lefline[ncol][nclin] > 0) {
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ncol++;
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rightl++;
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};
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if (sawchar)
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nclin++;
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if (nclin >= MAXHEAD)
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error("too many lines in specification");
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icol = 0;
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if (ncol == 0 || nclin == 0)
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error("no specification");
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if (c == '.') {
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while ((c = get1char()) && c != '\n')
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if (c != ' ' && c != '\t')
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error("dot not last character on format line");
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/* fix up sep - default is 3 except at edge */
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for (icol = 0; icol < ncol; icol++)
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if (sep[icol] < 0)
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sep[icol] = icol + 1 < ncol ? 3 : 2;
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if (oncol == 0)
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oncol = ncol;
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else if (oncol + 2 < ncol)
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error("tried to widen table in T&, not allowed");
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return;
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}
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sawchar = 0;
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continue;
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case 'C':
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case 'S':
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case 'R':
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case 'N':
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case 'L':
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case 'A':
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c += ('a' - 'A');
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case '_':
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if (c == '_')
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c = '-';
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case '=':
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case '-':
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case '^':
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case 'c':
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case 's':
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case 'n':
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case 'r':
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case 'l':
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case 'a':
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style[icol][nclin] = c;
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if (c == 's' && icol <= 0)
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error("first column can not be S-type");
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if (c == 's' && style[icol-1][nclin] == 'a') {
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Bprint(&tabout, ".tm warning: can't span a-type cols, changed to l\n");
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style[icol-1][nclin] = 'l';
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}
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if (c == 's' && style[icol-1][nclin] == 'n') {
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Bprint(&tabout, ".tm warning: can't span n-type cols, changed to c\n");
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style[icol-1][nclin] = 'c';
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}
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icol++;
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if (c == '^' && nclin <= 0)
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error("first row can not contain vertical span");
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if (icol > qcol)
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error("too many columns in table");
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sawchar = 1;
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continue;
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case 'b':
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case 'i':
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c += 'A' - 'a';
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case 'B':
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case 'I':
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if (icol == 0)
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continue;
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snp = font[icol-1][nclin];
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snp[0] = (c == 'I' ? '2' : '3');
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snp[1] = 0;
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continue;
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case 't':
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case 'T':
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if (icol > 0)
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flags[icol-1][nclin] |= CTOP;
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continue;
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case 'd':
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case 'D':
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if (icol > 0)
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flags[icol-1][nclin] |= CDOWN;
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continue;
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case 'f':
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case 'F':
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if (icol == 0)
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continue;
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snp = font[icol-1][nclin];
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snp[0] = snp[1] = stopc = 0;
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for (i = 0; i < 2; i++) {
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c = get1char();
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if (i == 0 && c == '(') {
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stopc = ')';
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c = get1char();
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}
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if (c == 0)
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break;
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if (c == stopc) {
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stopc = 0;
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break;
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}
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if (stopc == 0)
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if (c == ' ' || c == tab )
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break;
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if (c == '\n' || c == '|') {
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un1getc(c);
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break;
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}
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snp[i] = c;
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if (c >= '0' && c <= '9')
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break;
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}
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if (stopc)
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if (get1char() != stopc)
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error("Nonterminated font name");
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continue;
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case 'P':
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case 'p':
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if (icol <= 0)
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continue;
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temp = snp = csize[icol-1][nclin];
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while (c = get1char()) {
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if (c == ' ' || c == tab || c == '\n')
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break;
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if (c == '-' || c == '+')
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if (snp > temp)
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break;
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else
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*snp++ = c;
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else if (digit(c))
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*snp++ = c;
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else
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break;
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if (snp - temp > 4)
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error("point size too large");
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}
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*snp = 0;
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if (atoi(temp) > 36)
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error("point size unreasonable");
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un1getc (c);
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continue;
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case 'V':
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case 'v':
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if (icol <= 0)
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continue;
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temp = snp = vsize[icol-1][nclin];
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while (c = get1char()) {
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if (c == ' ' || c == tab || c == '\n')
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break;
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if (c == '-' || c == '+')
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if (snp > temp)
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break;
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else
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*snp++ = c;
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else if (digit(c))
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*snp++ = c;
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else
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break;
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if (snp - temp > 4)
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error("vertical spacing value too large");
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}
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*snp = 0;
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un1getc(c);
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continue;
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case 'w':
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case 'W':
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snp = cll [icol-1];
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/* Dale Smith didn't like this check - possible to have two text blocks
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of different widths now ....
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if (*snp)
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{
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Bprint(&tabout, "Ignored second width specification");
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continue;
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}
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/* end commented out code ... */
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stopc = 0;
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while (c = get1char()) {
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if (snp == cll[icol-1] && c == '(') {
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stopc = ')';
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continue;
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}
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if ( !stopc && (c > '9' || c < '0'))
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break;
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if (stopc && c == stopc)
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break;
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*snp++ = c;
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}
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*snp = 0;
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if (snp - cll[icol-1] > CLLEN)
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error ("column width too long");
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if (!stopc)
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un1getc(c);
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continue;
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case 'e':
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case 'E':
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if (icol < 1)
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continue;
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evenup[icol-1] = 1;
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evenflg = 1;
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continue;
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case 'z':
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case 'Z': /* zero width-ignre width this item */
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if (icol < 1)
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continue;
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flags[icol-1][nclin] |= ZEROW;
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continue;
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case 'u':
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case 'U': /* half line up */
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if (icol < 1)
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continue;
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flags[icol-1][nclin] |= HALFUP;
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continue;
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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sn[0] = c;
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snp = sn + 1;
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while (digit(*snp++ = c = get1char()))
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;
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un1getc(c);
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sep[icol-1] = max(sep[icol-1], numb(sn));
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continue;
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case '|':
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lefline[icol][nclin]++;
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if (icol == 0)
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left1flg = 1;
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continue;
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}
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}
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error("EOF reading table specification");
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}
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int
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findcol(void)
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{
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# define FLNLIM 200
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/* this counts the number of columns and then puts the line back*/
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char *s, line[FLNLIM+2], *p;
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int c, n = 0, inpar = 0;
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while ((c = get1char()) != 0 && c == ' ')
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;
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if (c != '\n')
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un1getc(c);
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for (s = line; *s = c = get1char(); s++) {
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if (c == ')')
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inpar = 0;
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if (inpar)
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continue;
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if (c == '\n' || c == 0 || c == '.' || c == ',')
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break;
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else if (c == '(')
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inpar = 1;
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else if (s >= line + FLNLIM)
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error("too long spec line");
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}
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for (p = line; p < s; p++)
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switch (*p) {
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case 'l':
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case 'r':
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case 'c':
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case 'n':
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case 'a':
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case 's':
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case 'L':
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case 'R':
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case 'C':
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case 'N':
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case 'A':
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case 'S':
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case '-':
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case '=':
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case '_':
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n++;
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}
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while (p >= line)
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un1getc(*p--);
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return(n);
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}
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void
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garray(int qcol)
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{
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style = (int (*)[]) getcore(MAXHEAD * qcol, sizeof(int));
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evenup = (int *) getcore(qcol, sizeof(int));
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lefline = (int (*)[]) getcore(MAXHEAD * (qcol + 1), sizeof (int)); /*+1 for sample55 loop - others may need it too*/
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font = (char (*)[][2]) getcore(MAXHEAD * qcol, 2);
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csize = (char (*)[MAXHEAD][4]) getcore(MAXHEAD * qcol, 4);
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vsize = (char (*)[MAXHEAD][4]) getcore(MAXHEAD * qcol, 4);
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flags = (int (*)[]) getcore(MAXHEAD * qcol, sizeof(int));
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cll = (char (*)[])getcore(qcol, CLLEN);
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sep = (int *) getcore(qcol + 1, sizeof(int));
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sep++; /* sep[-1] must be legal */
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used = (int *) getcore(qcol + 1, sizeof(int));
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lused = (int *) getcore(qcol + 1, sizeof(int));
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rused = (int *) getcore(qcol + 1, sizeof(int));
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doubled = (int *) getcore(qcol + 1, sizeof(int));
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acase = (int *) getcore(qcol + 1, sizeof(int));
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topat = (int *) getcore(qcol + 1, sizeof(int));
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}
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char *
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getcore(int a, int b)
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{
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char *x;
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x = calloc(a, b);
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if (x == 0)
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error("Couldn't get memory");
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return(x);
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}
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void
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freearr(void)
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{
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free(style);
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free(evenup);
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free(lefline);
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free(flags);
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free(font);
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free(csize);
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free(vsize);
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free(cll);
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free(--sep); /* netnews says this should be --sep because incremented earlier! */
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free(used);
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free(lused);
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free(rused);
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free(doubled);
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free(acase);
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free(topat);
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}
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