mirror of https://github.com/tLDP/LDP
141 lines
3.6 KiB
Bash
141 lines
3.6 KiB
Bash
#!/bin/bash
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# tohtml.sh [v. 0.2, reldate: 06/26/80, still buggy]
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# Convert a text file to HTML format.
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# Author: Mendel Cooper
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# License: GPL3
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# Usage: sh tohtml.sh < textfile > htmlfile
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# Script can easily be modified to accept source and target filenames.
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# Assumptions:
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# 1) Paragraphs in (target) text file are separated by a blank line.
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# 2) Jpeg images (*.jpg) are located in "images" subdirectory.
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# In the target file, the image names are enclosed in square brackets,
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# for example, [image01.jpg].
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# 3) Emphasized (italic) phrases begin with a space+underscore
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#+ or the first character on the line is an underscore,
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#+ and end with an underscore+space or underscore+end-of-line.
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# Settings
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FNTSIZE=2 # Small-medium font size
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IMGDIR="images" # Image directory
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# Headers
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HDR01='<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">'
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HDR02='<!-- Converted to HTML by ***tohtml.sh*** script -->'
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HDR03='<!-- script author: M. Leo Cooper <thegrendel@theriver.com> -->'
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HDR10='<html>'
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HDR11='<head>'
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HDR11a='</head>'
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HDR12a='<title>'
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HDR12b='</title>'
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HDR121='<META NAME="GENERATOR" CONTENT="tohtml.sh script">'
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HDR13='<body bgcolor="#dddddd">' # Change background color to suit.
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HDR14a='<font size='
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HDR14b='>'
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# Footers
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FTR10='</body>'
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FTR11='</html>'
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# Tags
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BOLD="<b>"
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CENTER="<center>"
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END_CENTER="</center>"
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LF="<br>"
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write_headers ()
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{
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echo "$HDR01"
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echo
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echo "$HDR02"
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echo "$HDR03"
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echo
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echo
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echo "$HDR10"
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echo "$HDR11"
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echo "$HDR121"
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echo "$HDR11a"
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echo "$HDR13"
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echo
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echo -n "$HDR14a"
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echo -n "$FNTSIZE"
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echo "$HDR14b"
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echo
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echo "$BOLD" # Everything in bold (more easily readable).
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}
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process_text ()
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{
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while read line # Read one line at a time.
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do
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{
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if [ ! "$line" ] # Blank line?
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then # Then new paragraph must follow.
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echo
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echo "$LF" # Insert two <br> tags.
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echo "$LF"
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echo
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continue # Skip the underscore test.
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else # Otherwise . . .
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if [[ "$line" =~ "\[*jpg\]" ]] # Is a graphic?
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then # Strip away brackets.
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temp=$( echo "$line" | sed -e 's/\[//' -e 's/\]//' )
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line=""$CENTER" <img src="\"$IMGDIR"/$temp\"> "$END_CENTER" "
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# Add image tag.
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# And, center it.
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fi
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fi
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echo "$line" | grep -q _
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if [ "$?" -eq 0 ] # If line contains underscore ...
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then
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# ===================================================
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# Convert underscored phrase to italics.
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temp=$( echo "$line" |
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sed -e 's/ _/ <i>/' -e 's/_/<\/i> /' |
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sed -e 's/^_/<i>/' -e 's/_/<\/i>/' )
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# Process only underscores prefixed by space,
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#+ or at beginning or end of line.
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# Do not convert underscores embedded within a word!
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line="$temp"
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# Slows script execution. Can be optimized?
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# ===================================================
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fi
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echo
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echo "$line"
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echo
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} # End while
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done
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} # End process_text ()
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write_footers () # Termination tags.
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{
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echo "$FTR10"
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echo "$FTR11"
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}
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# main () {
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# =========
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write_headers
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process_text
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write_footers
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# =========
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# }
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exit $?
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# Exercises:
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# ---------
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# 1) Fixup: Check for closing underscore before a comma or period.
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# 2) Add a test for the presence of a closing underscore
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#+ in phrases to be italicized.
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