On Thursday, November 23, 2017 at 3:53:58 PM UTC-8, Chris Jones wrote:
> I am currently in the final stages of putting together an epub version of
> Auguste Escoffier's _Le Guide Culinaire_.
>
> Since this is a "cookbook" of sorts, the last step before proofreading
> pretty much requires building a working index with html style links to
> the text relative to each entry.
>
> In an epub context this can be achieved by wrapping the text of each
> entry in something of the form:
>
> <a href="../Text/file.xhtml#p0001">index_entry</a>
>
> where "file.xhtml" is one of the files making up the text of the e-book
> and "p0001" has been defined as an "< ... id="p0001"> within the file.
>
> There are over 6000 entries in this index, which (loudly) suggests that
> in this instance it might be worth spending a few hours concocting some
> form of automated solution to add all the < href > links to the file in
> one fell swoop rather than doing it manually.
>
> The index is a repetition of lines with the following structure:
>
>
> <div class="ind-01"></div>
> <div class="ind-02">Abatis</div>
> <div class="ind-03">621</div>
>
> <div class="ind-01"></div>
> <div class="ind-02"> — à la Bourguignonne</div>
> <div class="ind-03">621</div>
>
> ...
>
>
> After loading the index file in a vim buffer I have found that:
>
> 1. I can match all page entries in a non-ambiguous manner by a search
> with the following pattern: "/\d\+<"
>
> The match as highlighted via ":set hlsearch" includes the page number
> and nothing else and the cursor sits on the first digit of the page
> number.
>
> 2. I can invoke the following one-liner from vim with the page number as
> an argument and it returns the generated link:
>
>
> #!/bin/bash
>
> grep -o 'p0[0-9][0-9][0-9]' *.htm | \
> awk 'BEGIN { FS=":"} {print "<a href=\"../Text/" $1 "#" $2 "\"" ">" }' | \
> grep "$1"
>
> exit 0
>
>
> ... like so:
>
> :r ! My_script 0621
>
> generates the link and writes it to the vim buffer:
>
> <a href="../Text/gc0306.htm#p0621">
>
> What I am missing at this point:
>
> 1. I need to retrieve the matched string of the current "/\d\+<" search
> and place it in some kind of vim variable (?) that I can use to
> invoke the script so that it can be done iteratively without having
> to tyoe the page number manually:
>
> :r ! my_script $vim_variable
>
> 2. I need to find a way to remove any new-line character(s) so that the
> output of "My_script $vim_variable" is placed at the right spot in
> the buffer: after I invoke the script using ":r ! My_script"... the
> output is inserted in column 0 on a new line immediately after the
> matching string:
>
>
> <div class="ind-01"></div>
> <div class="ind-02">Abatis</div>
> <div class="ind-03">621</div>
> <a href="../Text/gc0306.htm#p0621">
>
>
> 3. A third issue is adding the closing "</a>" tag after the targeted
> text, thus completing the wrapping of the entry so that the end
> result of one iteration looks exactly like this:
>
>
> <div class="ind-01"></div>
> <div class="ind-02"><a href="../Text/gc0306.htm#p0621"> Abatis</a></div>
> <div class="ind-03">621</div>
>
>
> In other words, I need to put together some kind of front-end...
> presumably in vimscript (so that I have ability to navigate the lines in
> the buffer)... that does the three things described above:
>
> 1. grab the current matched string/page number, pass it to the bash
> one-liner to generate the corresponding <a href="..."> and return
> the result to vim.
>
> 2. move the cursor to the first character of the corresponding index
> entry (the text and the page number are vertically aligned so that
> hitting "k" on the keyboard does exactly that...) and insert the
> generated text before the cursor (iow, what a Shift-P would do)
>
> 3. jump to the opening "<" of the closing </div> tag and insert "</a>"
> before the cursor.
>
> Another approach I considered might consist in recording a vim macro
> that would reproduce manual actions at the keyboard and run it
> iteratively against the buffer. But I doubt line-mode commands such as
> ":r ! ..." would be recorded.
>
> Please let me know if this is at all feasible in vim (and vim might
> offer better means of achieving what I am trying to do) or whether
> I should look at other options.
>
> Thanks,
>
> C]
Substitute (:h :s) will do all you need. In the case of links and anchors, I modify this model to the specific situation in each case:
:%s/ \(_\(\w\+\)\)/ <a href="#\1">\2<\/a>/g|:%s/^_\w\+$/<a name="&"><\/a>/
Being simple minded, I just ensure that anchors always occur at the start of lines, and that links never do.
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