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-rw-r--r--pkg/system/help/lroff/lroff2html.x781
1 files changed, 781 insertions, 0 deletions
diff --git a/pkg/system/help/lroff/lroff2html.x b/pkg/system/help/lroff/lroff2html.x
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+++ b/pkg/system/help/lroff/lroff2html.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include <ctype.h>
+include "lroff.h"
+
+define DIRECTIVE 1 # processing codes
+define NAME 2
+define TEXT 3
+
+define F_ROMAN 1 # font changes
+define F_ITALIC 2
+define F_BOLD 3
+define F_PREVIOUS 4
+define F_TELETYPE 5 # HTML-specific font
+
+define SPTR Memi[$1+$2]
+define SECTION Memc[SPTR($1,$2)]
+define MAX_SECTIONS 256
+
+
+# LROFF2HTML -- Convert LROFF text to HTML. By default we process the
+# entire file however we allow for the printing of only a particular section
+# or labelled text block to be compatible with the HELP task options.
+# If a section name is given that section will be printed and and .ls
+# block request will be ignored.
+
+procedure lroff2html (in, out, module, parstr, center, ls_block, section)
+
+int in #I input file descriptor
+int out #I output file descriptor
+char module[ARB] #I .help module name
+char parstr[ARB] #I .help optional keyword 2
+char center[ARB] #I .help optional keyword 3
+char ls_block[ARB] #I .ls block to search for
+char section[ARB] #I section to print
+
+pointer sp, ip, sptr
+pointer ibuf, unesc, name, level
+int lastline, font, indented, ls_level
+int i, arg, nsec, cmd
+bool format, quit_at_le, quit_at_ih, formatted
+
+int lh_findsection(), lh_findblock(), nextcmd()
+int stridxs(), getline(), strlen(), strmatch(), lgetarg()
+
+define text_ 99
+define err_ 98
+
+include "lroff.com"
+
+begin
+ call smark (sp)
+ call salloc (ibuf, SZ_IBUF, TY_CHAR)
+ call salloc (unesc, SZ_IBUF, TY_CHAR)
+ call salloc (name, SZ_LINE, TY_CHAR)
+ call salloc (level, SZ_FNAME, TY_CHAR)
+ call salloc (sptr, MAX_SECTIONS, TY_POINTER)
+
+ call aclrc (Memc[ibuf], SZ_IBUF)
+ call aclrc (Memc[name], SZ_LINE)
+ call aclrc (Memc[unesc], SZ_IBUF)
+ call aclrc (Memc[level], SZ_FNAME)
+
+ # Initialize.
+ lastline = TEXT
+ font = F_ROMAN
+ indented = YES
+ nsec = 0
+ ls_level = 0
+ format = true
+ quit_at_le = false
+ quit_at_ih = false
+ formatted = false
+
+ # Initialize the section numbering.
+ call amovki (0, nh_level, MAX_NHLEVEL)
+
+ # Determine whether or not the text is formatted.
+ repeat {
+ if (getline (in, Memc[ibuf]) == EOF)
+ goto err_
+ for (ip=1; IS_WHITE(Memc[ibuf+ip-1]); ip=ip+1)
+ ;
+ } until (Memc[ibuf+ip-1] != '\n')
+ call ungetline (in, Memc[ibuf])
+ if (Memc[ibuf] == '.')
+ formatted = true
+
+ # Scan forward if searching for and item.
+ if (section[1] != EOS) {
+ if (lh_findsection (in, formatted, section) == EOF)
+ goto err_
+ } else if (ls_block[1] != EOS) {
+ if (lh_findblock (in, formatted, ls_block) == EOF)
+ goto err_
+ quit_at_le = true
+ }
+
+ # Begin the output.
+ call lh_prolog (out, module, parstr, center)
+ call fprintf (out, "<TITLE>%s</TITLE>\n<UL>\n")
+ if (ls_block[1] != EOS)
+ call pargstr (ls_block)
+ else if (section[1] != EOS)
+ call pargstr (section)
+ else if (module[1] != EOS)
+ call pargstr (module)
+ else
+ call pargstr (" ")
+
+
+ # Process the file.
+ while (getline (in, Memc[ibuf]) != EOF) {
+
+ # Make a copy of the raw line minus the newline char, we may need
+ # this to extract comments later.
+ Memc[ibuf+strlen(Memc[ibuf])-1] = EOS
+ call strcpy (Memc[ibuf], Memc[unesc], SZ_LINE)
+
+
+ # Escape problem chars for HTML and handle font changes. Changes
+ # are done in-place.
+ call lh_escape (Memc[ibuf], font, format, NO, SZ_LINE)
+
+ switch (Memc[ibuf]) {
+ case '\n':
+ call fprintf (out, "<P>\n")
+
+ case '.':
+ # Swallow any help strings if present.
+ if (strmatch (Memc[ibuf], "^.help") > 0)
+ next
+
+ ip = 1
+ lastline = TEXT
+
+ # Process the directive, position the ip at the beginning
+ # of any argument.
+ cmd = nextcmd (Memc[ibuf], ip)
+ while (IS_WHITE(Memc[ibuf+ip])) # skip spaces
+ ip = ip + 1
+
+ switch (cmd) {
+ case FI: # enter fill mode
+ call fprintf (out, "</PRE>\n")
+ format = true
+ case NF: # leave fill mode (nofill)
+ call fprintf (out, "<PRE>\n")
+ format = false
+ case JU: # enter line justification mode
+ # no-op
+ next
+ case NJ: # leave line justification mode
+ # no-op
+ next
+ case RJ: # right justify text on nf,nj line
+ # no-op
+ next
+
+ case SH: # section heading
+ if (ls_level > 0) { # for missing .le statements
+ call fprintf (out, "</DD>\n</DL>\n")
+ ls_level = 0
+ }
+ lastline = DIRECTIVE
+ Memc[level] = EOS
+ next
+ case IH: # indented section heading
+ if (ls_level > 0) { # for missing .le statements
+ call fprintf (out, "</DD>\n</DL>\n")
+ ls_level = 0
+ }
+ lastline = DIRECTIVE
+ Memc[level] = EOS
+ if (quit_at_ih)
+ if (stridxs ("|", section) > 0) {
+ quit_at_ih = false
+ call ungetline (in, Memc[ibuf])
+ if (lh_findsection (in, formatted, section) == EOF)
+ break
+ } else
+ break
+ next
+ case NH: # numbered section heading
+ if (ls_level > 0) { # for missing .le statements
+ call fprintf (out, "</DD>\n</DL>\n")
+ ls_level = 0
+ }
+ call lh_set_level (lgetarg(Memc[ibuf],ip,1), Memc[level])
+ lastline = DIRECTIVE
+ next
+
+ case CE: # center next line
+ if (getline (in, Memc[ibuf]) == EOF)
+ break
+ else {
+ call lh_escape (Memc[ibuf], font, true, NO, SZ_LINE)
+ call fprintf (out, "<CENTER>%s</CENTER><BR>\n")
+ call pargstr (Memc[ibuf])
+ }
+
+ case BR: # break line
+ call fprintf (out, "<BR>\n")
+ case SP: # break, space N spaces on output
+ arg = lgetarg (Memc[ibuf], ip, 1)
+ call fprintf (out, "<BR>\n")
+ for (i=1; i < arg; i = i + 1)
+ call fprintf (out, "<BR>\n")
+ case IN: # indent +/- N spaces
+ # no-op
+ next
+
+ case LS: # begin labelled section
+ arg = lgetarg (Memc[ibuf], ip, 0)
+ if (arg == 0)
+ ip = 5
+
+ # Generate a HREF of the label, we use only the first word.
+ call strcpy (Memc[ibuf+ip-1], Memc[name], SZ_LINE)
+ for (i=0; IS_ALNUM(Memc[name+i]) ||
+ Memc[name+i] == '_'; i=i+1)
+ ;
+ Memc[name+i] = EOS
+ Memc[ibuf+ip+strlen(Memc[ibuf+ip])-1] = EOS
+
+ call fprintf (out, "<DL>\n<DT><B>")
+ call fprintf (out,"<A NAME=\"l_%s\">%s</A>")
+ call pargstr (Memc[name])
+ call pargstr (Memc[ibuf+ip-1])
+ call fprintf (out, "</B></DT>\n")
+
+ # Write out a comment line for the GUI to use.
+ call lh_escape(Memc[unesc+ip-1], font, true, YES, SZ_LINE)
+ Memc[unesc+strlen(Memc[unesc])-1] = EOS
+ call fprintf (out,
+ "<! Sec=%s Level=%d Label=\'%s\' Line=\'%s\'>\n<DD>")
+ if (nsec > 0)
+ call pargstr (SECTION(sptr, nsec-1))
+ else
+ call pargstr ("None")
+ call pargi (ls_level)
+ call pargstr (Memc[name])
+ if (Memc[unesc+ip-1] == '\n')
+ call pargstr (" ")
+ else
+ call pargstr (Memc[unesc+ip-1])
+ ls_level = ls_level + 1
+
+ case LE: # end labelled section
+ call fprintf (out, "</DD>\n</DL>\n")
+ ls_level = ls_level - 1
+ if (quit_at_le)
+ break
+
+ case HR: # HREF anchor
+ # HTML href anchor of the form ".hr <href> <anch_text>",
+ # we skip ahead to the <text> and process as a normal line.
+ Memc[ibuf+ip+strlen(Memc[ibuf+ip])-1] = EOS
+ for (i=0; !IS_WHITE(Memc[ibuf+ip]); ip=ip+1) {
+ Memc[name+i] = Memc[ibuf+ip]
+ i = i + 1
+ }
+ Memc[name+i] = EOS
+
+ call fprintf (out, "<A HREF=\"%s\">%s</A>\n")
+ call pargstr (Memc[name])
+ call pargstr (Memc[ibuf+ip+1])
+
+ case HN: # NAME target
+ # HTML name target of the form ".hn <name>", strip the
+ # newline added in the escape routine.
+ Memc[ibuf+ip+strlen(Memc[ibuf+ip])-1] = EOS
+ call fprintf (out, "<A NAME=\"%s\"></A>\n")
+ call pargstr (Memc[ibuf+ip])
+
+ case BP: # break page
+ # no-op
+ next
+ case TP: # test space left on page
+ # no-op
+ next
+ case KS: # start floating keep
+ call fprintf (out, "<PRE>\n")
+ format = false
+ case KE: # end floating keep
+ call fprintf (out, "</PRE>\n")
+ format = true
+ case ENDHELP: # end of help block
+ break
+ }
+
+ default:
+ if (lastline == DIRECTIVE) {
+
+ # Section directive name. For certain standard sections
+ # we'll force an indention to make the output look better,
+ # everything else gets written normally.
+
+ # Save the section name.
+ call salloc (SPTR(sptr,nsec), SZ_LINE, TY_CHAR)
+ call aclrc (SECTION(sptr,nsec), SZ_LINE)
+ Memc[ibuf+strlen(Memc[ibuf])-1] = EOS
+ call sprintf (SECTION(sptr,nsec), SZ_LINE, "\'%s\'")
+ call pargstr (Memc[ibuf])
+
+ if (indented == YES)
+ call fprintf (out, "</UL>\n")
+ if (nsec > 0) {
+ call fprintf (out, "<! EndSection: %s>\n")
+ call pargstr (SECTION(sptr,nsec-1))
+ }
+
+ # Make the section name a URL target.
+ call lh_mkname (Memc[ibuf], Memc[name])
+ if (Memc[level] == EOS) {
+ call fprintf (out, "<H2><A NAME=\"s_%s\">%s</A></H2>\n")
+ call pargstr (Memc[name])
+ call pargstr (Memc[ibuf])
+ } else {
+ call fprintf (out,
+ "<H2><A NAME=\"s_%s\">%s %s</A></H2>\n")
+ call pargstr (Memc[name])
+ call pargstr (Memc[level])
+ call pargstr (Memc[ibuf])
+ Memc[level] = EOS
+ }
+
+ call fprintf (out, "<! BeginSection: \'%s\'>\n")
+ call pargstr (Memc[ibuf])
+ if (indented == YES)
+ call fprintf (out, "<UL>\n")
+
+ lastline = NAME
+ nsec = nsec + 1
+ if (section[1] != EOS)
+ quit_at_ih = true
+
+ } else {
+ # Ordinary text line.
+text_ call fprintf (out, "%s")
+ call pargstr (Memc[ibuf])
+ lastline = TEXT
+ }
+ }
+
+ call aclrc (Memc[ibuf], SZ_IBUF)
+ call aclrc (Memc[unesc], SZ_IBUF)
+ call aclrc (Memc[name], SZ_LINE)
+ }
+
+ # Close the last section.
+ if (nsec > 0) {
+ call fprintf (out, "</UL>\n<! EndSection: %s>\n\n")
+ call pargstr (SECTION(sptr,nsec-1))
+ }
+
+ # Write out an HTML comment giving the document section names.
+ call fprintf (out, "<! Contents: ")
+ for (i=0; i < nsec; i=i+1) {
+ call fprintf (out, "%s ")
+ call pargstr (SECTION(sptr,i))
+ }
+ call fprintf (out, " >\n\n")
+ call fprintf (out, "</BODY>\n</HTML>\n")
+
+ call flush (out)
+err_ call sfree (sp)
+end
+
+
+# LH_PROLOG -- Begin the HTML output, print the header table for a help
+# page if we have the information.
+
+procedure lh_prolog (fd, mod, date, title)
+
+int fd #I output file descriptor
+char mod[ARB] #I .help module name
+char date[ARB] #I .help keyword 2
+char title[ARB] #I .help keyword 3
+
+begin
+ call fprintf (fd, "<HTML>\n<BODY>\n")
+
+ # If we only have the module name don't bother with header.
+ if (date[1] == EOS && title[1] == EOS)
+ return
+
+ # Begin the HTML output prolog.
+ call fprintf (fd, "<TABLE WIDTH=\"100%%\" BORDER=0><TR>\n")
+
+ # Left side page header.
+ call fprintf (fd, "<TD ALIGN=LEFT><FONT SIZE=4>\n")
+ if (date[1] == EOS) {
+ call fprintf (fd, "<B>%s</B>")
+ call pargstr (mod)
+ } else {
+ call fprintf (fd, "<B>%s (%s)</B>")
+ call pargstr (mod)
+ call pargstr (date)
+ }
+ call fprintf (fd, "</FONT></TD>\n")
+
+ # Center page header.
+ if (title[1] != EOS) {
+ call fprintf (fd, "<TD ALIGN=CENTER><FONT SIZE=4>\n")
+ call fprintf (fd, "<B>%s</B>\n")
+ call pargstr (title)
+ call fprintf (fd, "</FONT></TD>\n")
+ }
+
+ # Right side page header.
+ call fprintf (fd, "<TD ALIGN=RIGHT><FONT SIZE=4>\n")
+ if (date[1] == EOS) {
+ call fprintf (fd, "<B>%s</B>")
+ call pargstr (mod)
+ } else {
+ call fprintf (fd, "<B>%s (%s)</B>")
+ call pargstr (mod)
+ call pargstr (date)
+ }
+ call fprintf (fd, "</FONT></TD>\n")
+
+ call fprintf (fd, "</TR></TABLE><P>\n")
+end
+
+
+# LH_ESCAPE -- Escape any HTML problem characters in the line ('<','>','&')
+# as well as the font changes.
+
+procedure lh_escape (str, font, format, special_only, maxch)
+
+char str[ARB] #I string to edit
+int font #U current font
+bool format #I formatting flag
+int special_only #I escape only special chars?
+int maxch #I max length of string
+
+pointer sp, ip, buf, keyword
+int i, gstrcpy(), stridx()
+
+define copy_ 90
+
+begin
+ call smark (sp)
+ call salloc (buf, maxch, TY_CHAR)
+ call salloc (keyword, maxch, TY_CHAR)
+ call aclrc (Memc[buf], maxch)
+ call aclrc (Memc[keyword], maxch)
+
+ ip = buf
+ for (i=1; str[i] != EOS && i <= maxch; i = i + 1) {
+
+ if (special_only == YES && stridx (str[i], "<>&") == 0)
+ goto copy_
+
+ switch (str[i]) {
+
+ # Handle special chars.
+ case '<':
+ ip = ip + gstrcpy ("&lt;", Memc[ip], SZ_LINE)
+ case '>':
+ ip = ip + gstrcpy ("&gt;", Memc[ip], SZ_LINE)
+ case '&':
+ ip = ip + gstrcpy ("&amp;", Memc[ip], SZ_LINE)
+
+ # Quoted single chars and strings get a special font.
+ case '\'':
+ if (str[i+2] == '\'') {
+ ip = ip + gstrcpy ("<TT>", Memc[ip], SZ_LINE)
+ ip = ip + gstrcpy (str[i], Memc[ip], 3)
+ ip = ip + gstrcpy ("</TT>", Memc[ip], SZ_LINE)
+ i = i + 2
+ } else
+ goto copy_
+ case '`':
+ if (str[i+2] == '`' || str[i+2] == '\'') {
+ ip = ip + gstrcpy ("<TT>", Memc[ip], SZ_LINE)
+ ip = ip + gstrcpy (str[i], Memc[ip], 3)
+ ip = ip + gstrcpy ("</TT>", Memc[ip], SZ_LINE)
+ i = i + 2
+ } else
+ goto copy_
+ case '"':
+ if (format && str[i+1] != '/' && str[i+2] != '/') {
+ if (font == F_TELETYPE) {
+ # Do a closing quote.
+ ip = ip + gstrcpy ("</TT>\"", Memc[ip], SZ_LINE)
+ font = F_ROMAN
+ } else if (font == F_ROMAN) {
+ # Do an opening quote.
+ ip = ip + gstrcpy ("\"<TT>", Memc[ip], SZ_LINE)
+ font = F_TELETYPE
+ } else
+ goto copy_
+ } else
+ goto copy_
+
+ # Process font changes.
+ case '\\':
+ if (str[i+1] == 'f') {
+ if (str[i+2] == 'B') {
+ if (font == F_BOLD)
+ next
+ if (font == F_ITALIC)
+ ip = ip + gstrcpy ("</I>", Memc[ip], SZ_LINE)
+ ip = ip + gstrcpy ("<B>", Memc[ip], SZ_LINE)
+ font = F_BOLD
+
+ } else if (str[i+2] == 'I') {
+ if (font == F_ITALIC)
+ next
+ if (font == F_BOLD)
+ ip = ip + gstrcpy ("</B>", Memc[ip], SZ_LINE)
+ ip = ip + gstrcpy ("<I>", Memc[ip], SZ_LINE)
+ font = F_ITALIC
+
+ } else if (str[i+2] == 'R') {
+ if (font == F_BOLD)
+ ip = ip + gstrcpy ("</B>", Memc[ip], SZ_LINE)
+ else if (font == F_ITALIC)
+ ip = ip + gstrcpy ("</I>", Memc[ip], SZ_LINE)
+ font = F_ROMAN
+
+ } else if (str[i+2] == 'P') {
+ if (font == F_BOLD) {
+ ip = ip + gstrcpy ("</B>", Memc[ip], SZ_LINE)
+ } else if (font == F_ITALIC) {
+ ip = ip + gstrcpy ("</I>", Memc[ip], SZ_LINE)
+ }
+ font = F_ROMAN
+ }
+ i = i + 2
+ } else if (str[i+1] == '\n' || str[i+1] == EOS) {
+ Memc[ip] = str[i]
+ ip = ip + 1
+ i = i + 1
+ ip = ip + gstrcpy ("<BR>", Memc[ip], SZ_LINE)
+ } else
+ goto copy_
+
+ default:
+copy_ Memc[ip] = str[i]
+ ip = ip + 1
+ }
+ }
+
+ # Add the trailing newline we stripped above.
+ ip = ip + gstrcpy ("\n\0", Memc[ip], SZ_LINE)
+
+ # Move the string back.
+ call amovc (Memc[buf], str, maxch)
+
+ call sfree (sp)
+end
+
+
+# LH_SET_LEVEL -- Increment the level number of a numbered header.
+
+procedure lh_set_level (n, level)
+
+int n #I level number
+char level[ARB] #U level string
+
+int i, strlen()
+include "lroff.com"
+
+begin
+ # Increment the desired section number; zero all higher
+ # numbered section counters.
+ nh_level[n] = nh_level[n] + 1
+ call amovki (0, nh_level[n+1], MAX_NHLEVEL - n)
+
+ # Output the section number followed by a blank and then
+ # the section label.
+ level[1] = EOS
+ do i = 1, n {
+ call sprintf (level[strlen(level)+1], SZ_IBUF, "%d.")
+ call pargi (nh_level[i])
+ }
+
+ # Cancel the final "." if subsection heading. Add a blank.
+ if (n > 1 && level[strlen(level)] == '.')
+ level[strlen(level)] = EOS
+end
+
+
+# LH_FINDBLOCK -- If text contains format directives, eat input lines until
+# a ".ls" directive is found which contains the block name as a substring.
+# If the text is not formatted, search for a line beginning with the pattern.
+
+int procedure lh_findblock (fd, formatted, param)
+
+int fd
+bool formatted
+char param[ARB]
+
+bool match_found
+pointer sp, lbuf, pattern
+int len
+int getline(), strmatch(), strlen()
+errchk getline
+
+define err_ 90
+
+begin
+ call smark (sp)
+ call salloc (pattern, SZ_FNAME, TY_CHAR)
+ call salloc (lbuf, SZ_LINE, TY_CHAR)
+
+ match_found = false
+
+ # Get the first line.
+ if (getline (fd, Memc[lbuf]) == EOF)
+ goto err_
+
+ if (formatted) {
+ call sprintf (Memc[pattern], SZ_FNAME, "{%s}")
+ call pargstr (param)
+ repeat {
+ if (strmatch (Memc[lbuf], "^.{ls}") > 0)
+ if (strmatch (Memc[lbuf], Memc[pattern]) > 0) {
+ match_found = true
+ break
+ }
+ } until (getline (fd, Memc[lbuf]) == EOF)
+
+ } else {
+ call sprintf (Memc[pattern], SZ_FNAME, "^#{%s}")
+ call pargstr (param)
+ repeat {
+ if (strmatch (Memc[lbuf], Memc[pattern]) > 0) {
+ match_found = true
+ break
+ }
+ } until (getline (fd, Memc[lbuf]) == EOF)
+ }
+ call ungetline (fd, Memc[lbuf])
+
+err_ len = strlen (Memc[lbuf])
+ call sfree (sp)
+ if (match_found)
+ return (len)
+ else
+ return (EOF)
+end
+
+
+# LH_FINDSECTION -- If text contains format directives, eat input lines until
+# a ".ih" directive is found for the named section. If the text is not
+# formatted, search for a line beginning with the section name.
+
+define MAXPAT 10
+
+int procedure lh_findsection (fd, formatted, sections)
+
+int fd # input file
+bool formatted # is help block formatted
+char sections[ARB] # list of sections "a|b|c"
+
+bool match_found
+int npat, ip
+pointer sp, patbuf, patoff[MAXPAT], op
+char lbuf[SZ_LINE]
+
+bool lh_match()
+int getline(), strmatch()
+errchk getline
+
+define err_ 91
+
+begin
+ call smark (sp)
+ call salloc (patbuf, SZ_LINE, TY_CHAR)
+
+ # Process the list of sections into patbuf and patoff, i.e., into a
+ # list of EOS delimited strings in the string buffer patbuf. Each
+ # section name or abbreviation is delimited by '|' (or).
+
+ npat = 1
+ op = patbuf
+ patoff[1] = op
+
+ # Get the first line.
+ if (getline (fd, lbuf) == EOF)
+ goto err_
+
+ for (ip=1; sections[ip] != EOS; ip=ip+1)
+ switch (sections[ip]) {
+ case '|':
+ Memc[op] = EOS
+ op = op + 1
+ npat = min (MAXPAT, npat + 1)
+ patoff[npat] = op
+ default:
+ Memc[op] = sections[ip]
+ op = op + 1
+ }
+ Memc[op] = EOS
+
+ match_found = false
+
+ if (formatted) {
+ repeat {
+ if (strmatch (lbuf, "^.{ih}") > 0)
+ if (getline (fd, lbuf) != EOF) {
+ match_found = lh_match (lbuf, patoff, npat)
+ if (match_found)
+ break
+ }
+ } until (getline (fd, lbuf) == EOF)
+ call ungetline (fd, lbuf)
+ call ungetline (fd, ".ih\n")
+
+ } else {
+ repeat {
+ match_found = lh_match (lbuf, patoff, npat)
+ if (match_found)
+ break
+ } until (getline (fd, lbuf) == EOF)
+ call ungetline (fd, lbuf)
+ }
+
+err_ call sfree (sp)
+ if (match_found)
+ return (OK)
+ else
+ return (EOF)
+end
+
+
+# LH_MATCH -- Match a set of patterns against a line of test, matching only
+# at the beginning of line in either case.
+
+bool procedure lh_match (lbuf, patoff, npat)
+
+char lbuf[ARB] # line of text
+pointer patoff[npat] # pointers to pattern strings
+int npat # number of patterns
+
+int pat
+pointer sp, pattern
+int strmatch()
+
+begin
+ call smark (sp)
+ call salloc (pattern, SZ_FNAME, TY_CHAR)
+
+ for (pat=1; pat <= npat; pat=pat+1) {
+ call sprintf (Memc[pattern], SZ_FNAME, "^{%s}")
+ call pargstr (Memc[patoff[pat]])
+ if (strmatch (lbuf, Memc[pattern]) > 0) {
+ call sfree (sp)
+ return (true)
+ }
+ }
+
+ call sfree (sp)
+ return (false)
+end
+
+
+# LH_MKNAME -- Given a string make it suitable for use as an HREF name.
+
+procedure lh_mkname (instr, outstr)
+
+char instr[ARB]
+char outstr[ARB]
+
+int i
+
+begin
+ # Make it a URL. First convert the section name to a
+ # lower-case string and replace the blanks.
+ call strcpy (instr, outstr, SZ_LINE)
+ call strlwr (outstr)
+ for (i=1; i < SZ_LINE; i=i+1)
+ if (outstr[i] == EOS || outstr[i] == '\n')
+ break
+ else if (!IS_ALNUM(outstr[i]))
+ outstr[i] = '_'
+end
generated by cgit (git 2.34.1) at 2025-09-20 05:05:30 -0400