retroforth/wip/glossary.forth

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#!/usr/bin/env rre
# Overview
This is an application for looking up and updating documentation for
the words provided by RETRO.
# Data Set
I like plain text formats, so the data is stored as a text file, with
one line per word. Each line has a number of fields. These are tab
separated. The fields are:
| name | 0
| data stack | 1
| address stack | 2
| float stack | 3
| general description | 4
| interpret time description | 5
| compile time description | 6
| class handler | 7
| example 1 | 8
| example 2 | 9
| namespace | 10
| interface | 11
I use a variable named `SourceLine` to point to the current line
contents.
~~~
'SourceLine var
~~~
And a helper word to skip a specified number of fields.
~~~
:skip (n-) [ ASCII:HT s:split drop n:inc ] times ;
~~~
Then it's easy to add words to return each individual field.
~~~
:field:name (-s) @SourceLine
ASCII:HT s:split nip ;
:field:dstack (-s) @SourceLine #1 skip
ASCII:HT s:split nip ;
:field:astack (-s) @SourceLine #2 skip
ASCII:HT s:split nip ;
:field:fstack (-s) @SourceLine #3 skip
ASCII:HT s:split nip ;
:field:descr (-s) @SourceLine #4 skip
ASCII:HT s:split nip ;
:field:itime (-s) @SourceLine #5 skip
ASCII:HT s:split nip ;
:field:ctime (-s) @SourceLine #6 skip
ASCII:HT s:split nip ;
:field:class (-s) @SourceLine #7 skip
ASCII:HT s:split nip ;
:field:ex1 (-s) @SourceLine #8 skip
ASCII:HT s:split nip ;
:field:ex2 (-s) @SourceLine #9 skip
ASCII:HT s:split nip ;
:field:namespace (-s) @SourceLine #10 skip
ASCII:HT s:split nip ;
:field:interface (-s) @SourceLine #11 skip
ASCII:HT s:split nip ;
~~~
# Display an Entry
I implement a word to display an entry. This will use a format like:
name
Data: -
Addr: -
Float: -
A description of the word.
Class Handler: class:word | Namespace: global | Interface Layer: all
If there are specific notes on interpret or compile time actions, or any
examples, they will be displayed after the description.
~~~
:puts<formatted> (s-) s:with-format puts ;
:display-result
field:name puts nl nl
field:dstack '__Data:__%s\n puts<formatted>
field:astack '__Addr:__%s\n puts<formatted>
field:fstack '__Float:_%s\n puts<formatted> nl
field:descr '%s\n\n puts<formatted>
field:itime s:length n:zero? [ field:itime 'Interpret_Time:\n__%s\n\n puts<formatted> ] -if
field:ctime s:length n:zero? [ field:ctime 'Compile_Time:\n__%s\n\n puts<formatted> ] -if
field:interface field:namespace field:class
'Class_Handler:_%s_|_Namespace:_%s_|_Interface_Layer:_%s\n\n puts<formatted>
field:ex1 '{n/a} s:eq? [ field:ex1 s:with-format 'Example_#1:\n\n%s\n\n puts<formatted> ] -if
field:ex2 '{n/a} s:eq? [ field:ex2 s:with-format 'Example_#2:\n\n%s\n\n puts<formatted> ] -if ;
~~~
# Prepare for Command Line Processing
This application can take a variable number of arguments.
I first check to make sure at least one was passed. If not, just exit.
~~~
sys:argc n:zero? [ #0 unix:exit ] if
~~~
If execution reaches this point there's at least one argument. I use a
loop to store arguments into an array.
~~~
'Args d:create #32 allot
#0 sys:argc [ dup sys:argv s:keep over &Args + store n:inc ] times drop
~~~
And then populate constants for each one I care about.
~~~
#0 &Args + fetch 'QUERY s:const
#1 &Args + fetch 'TARGET s:const
#2 &Args + fetch 'TARGET2 s:const
~~~
# Interactions
With the command line data setup, I can now move on to the words for
handling specific interactions.
There are five primary roles:
* describe word
* add word
* delete word
* edit word
* export data
## Describe a Word
~~~
:matched? (-f) field:name TARGET s:eq? ;
:find-and-display-entry
'words.tsv [ s:keep !SourceLine matched? [ display-result ] if ] file:for-each-line ;
~~~
## Add a Word
## Delete a Word
## Edit a Word
Editing is a bit tricky. To keep things as simple as possible, I export
each field to a separate file under `/tmp/`.
~~~
:export-fields
field:name '/tmp/glossary.name file:spew
field:dstack '/tmp/glossary.dstack file:spew
field:astack '/tmp/glossary.astack file:spew
field:fstack '/tmp/glossary.fstack file:spew
field:descr '/tmp/glossary.descr file:spew
field:itime '/tmp/glossary.itime file:spew
field:ctime '/tmp/glossary.ctime file:spew
field:class '/tmp/glossary.class file:spew
field:ex1 '/tmp/glossary.ex1 file:spew
field:ex2 '/tmp/glossary.ex2 file:spew
field:namespace '/tmp/glossary.namespace file:spew
field:interface '/tmp/glossary.interface file:spew ;
~~~
Since I'm dumping a bunch of files into `/tmp/`, I also clean up
when done.
~~~
:delete-temporary
'/tmp/glossary.name file:delete
'/tmp/glossary.dstack file:delete
'/tmp/glossary.astack file:delete
'/tmp/glossary.fstack file:delete
'/tmp/glossary.descr file:delete
'/tmp/glossary.itime file:delete
'/tmp/glossary.ctime file:delete
'/tmp/glossary.class file:delete
'/tmp/glossary.ex1 file:delete
'/tmp/glossary.ex2 file:delete
'/tmp/glossary.namespace file:delete
'/tmp/glossary.interface file:delete ;
~~~
Cleaning the edited data is necessary. This entails:
- removing any trailing newlines
- converting internal newlines and tabs to escape sequences
~~~
:clean
dup s:length over + n:dec
fetch [ ASCII:LF eq? ] [ ASCII:CR eq? ] bi or [ s:chop ] if
here [ [ ASCII:LF [ $\ , $n , ] case
ASCII:CR [ $\ , $n , ] case
ASCII:HT [ $\ , $t , ] case
,
] s:for-each #0 ,
] dip ;
~~~
After an edit, I need to reassemble the pieces and write them out to
the file. I'll use `FOUT` as a variable for the file ID.
~~~
'FOUT var
~~~
And provide a word like `puts` that writes to this:
~~~
:write-line (s-) [ @FOUT file:write ] s:for-each ;
:write-nl (-) ASCII:LF @FOUT file:write ;
~~~
~~~
:generate-entry
s:empty [ '/tmp/glossary.fstack file:slurp ] sip clean s:keep
s:empty [ '/tmp/glossary.astack file:slurp ] sip clean s:keep
s:empty [ '/tmp/glossary.dstack file:slurp ] sip clean s:keep
s:empty [ '/tmp/glossary.name file:slurp ] sip clean s:keep
'%s\t%s\t%s\t%s\t s:with-format write-line
s:empty [ '/tmp/glossary.class file:slurp ] sip clean s:keep
s:empty [ '/tmp/glossary.ctime file:slurp ] sip clean s:keep
s:empty [ '/tmp/glossary.itime file:slurp ] sip clean s:keep
s:empty [ '/tmp/glossary.descr file:slurp ] sip clean s:keep
'%s\t%s\t%s\t%s\t s:with-format write-line
s:empty [ '/tmp/glossary.interface file:slurp ] sip clean s:keep
s:empty [ '/tmp/glossary.namespace file:slurp ] sip clean s:keep
s:empty [ '/tmp/glossary.ex2 file:slurp ] sip clean s:keep
s:empty [ '/tmp/glossary.ex1 file:slurp ] sip clean s:keep
'%s\t%s\t%s\t%s\t s:with-format write-line ;
~~~
Next, get the editor from the $EDITOR environment variable.
~~~
'EDITOR s:empty [ unix:getenv ] sip 'EDITOR s:const
~~~
~~~
:edit:field (s-)
EDITOR '%s_/tmp/glossary.%s s:with-format unix:system ;
~~~
~~~
:select-field
export-fields
TARGET
'name [ 'name edit:field ] s:case
'dstack [ 'dstack edit:field ] s:case
'astack [ 'astack edit:field ] s:case
'fstack [ 'fstack edit:field ] s:case
'descr [ 'descr edit:field ] s:case
'itime [ 'itime edit:field ] s:case
'ctime [ 'ctime edit:field ] s:case
'class [ 'class edit:field ] s:case
'ex1 [ 'ex1 edit:field ] s:case
'ex2 [ 'ex2 edit:field ] s:case
'namespace [ 'namespace edit:field ] s:case
'interface [ 'interface edit:field ] s:case
drop ;
~~~
~~~
:handle-edit
'words.new file:W file:open !FOUT
'words.tsv
[ s:keep !SourceLine field:name TARGET2 s:eq?
[ select-field generate-entry ] [ @SourceLine write-line ] choose write-nl
] file:for-each-line
'mv_words.new_words.tsv unix:system ;
~~~
## Export Data
In addition to providing a readable piece of documentation for each word,
I provide the ability to export the data into a few formats.
### Glossary
The glossary file consists of the documentation for each word, with a
separator bar between each entry.
~~~
:export-glossary
'words.tsv
[ s:keep !SourceLine display-result #64 [ $- putc ] times nl nl ] file:for-each-line ;
~~~
### TSV
I also provide for exporting the tab separated file itself. This will
strip out fields beyond the standard set, which can save some space if
you edit/save the TSV data with a spreadsheet application.
~~~
:display-fields
field:name puts tab
field:dstack puts tab
field:astack puts tab
field:fstack puts tab
field:descr puts tab
field:itime puts tab
field:ctime puts tab
field:class puts tab
field:ex1 puts tab
field:ex2 puts tab
field:namespace puts tab
field:interface puts tab
nl ;
:export-tsv
'words.tsv [ s:keep !SourceLine display-fields ] file:for-each-line ;
~~~
### Handle Exports
This is a second level command processor for deciding which export format
to use.
~~~
:export-data
TARGET
'glossary [ export-glossary ] s:case
'tsv [ export-tsv ] s:case
drop ;
~~~
# Finish
First, a word to handle command line arguments.
~~~
:process-arguments
QUERY
'describe [ find-and-display-entry ] s:case
'export [ export-data ] s:case
'edit [ handle-edit ] s:case
drop ;
~~~
~~~
process-arguments
#0 unix:exit
~~~