commit 8d6b28b556324270f1c36c468887eaeb5777d426
parent 805844e27f926f0c5c187a3ce688179f44d84f1a
Author: Dominik Schmidt <doeme@bastli.ethz.ch>
Date: Wed, 5 Sep 2018 00:37:28 +0200
Implementd JSON_to_GROFF with lua
Diffstat:
4 files changed, 65 insertions(+), 65 deletions(-)
diff --git a/README.md b/README.md
@@ -5,7 +5,8 @@ Requirements
------------
* amqp-tools
-* A D-Compiler, e.g. ldc2
+* lua
+* luajson
* ansifilter
* bash
* groff
diff --git a/pipeline/10_JSON_to_GROFF.d b/pipeline/10_JSON_to_GROFF.d
@@ -1,64 +0,0 @@
-module jsontogroff;
-import std.stdio;
-import std.process;
-import std.json;
-import std.array;
-import std.algorithm;
-import std.regex;
-import std.format;
-import std.conv;
-import std.range;
-import std.datetime : Clock;
-
-void main(string[] argv){
- auto str=stdin.byChunk(4096).map!(a=>cast(char[])a).joiner();
- auto j=parseJSON(str);
-
- string positions(){
- Appender!string app;
- app~=".na\n";
- app~=".TS\n";
- "llxni\n".repeat(j["articles"].array.length).copy(app);
- app~="===\n";
- app~="llxbni\n";
- app~=".\n";
- double total=0;
- foreach(ulong ix,art; j["articles"]){
- double price=art["price"].str.to!double;
- string name=art["name"].str;
- ulong amount=art["amount"].integer;
- auto esc_name=name.replace("\\","\\\\").replace("\n","\n ");
- app.formattedWrite!"%d\tT{\n%s\nT}\t%.2f\n"(amount,esc_name,price*amount);
- total+=price * amount;
- }
- app~="\n";
- app.formattedWrite("\tTOTAL\t%.2f\n", total);
- app~=".TE\n";
- app~=".al\n";
- return app.data;
- }
- string delegate()[string] tbl=[
- "sale_id": (){return j["sale_id"].integer.to!string;},
- "positions": &positions,
- "today": (){return Clock.currTime.toISOExtString();},
- ];
- auto lookup(Captures!(char[]) cap){
- auto b=cap[1];
- auto fct=b in tbl;
- if(!fct){
- return "{{"~b~"}}";
- }
- else{
- return cast(const(char)[])(*fct)();
- }
- }
- File tmplate=File(environment.get("GROFF_TEMPLATE"), "r");
- scope(exit)tmplate.close();
- auto reg=ctRegex!("\\{\\{([^}]+)\\}\\}");
- auto sink=stdout.lockingTextWriter;
-
- foreach(line; tmplate.byLine(KeepTerminator.yes)){
- replaceAllInto!(lookup)(sink, line, reg);
- }
-
-}
diff --git a/pipeline/10_JSON_to_GROFF.lua b/pipeline/10_JSON_to_GROFF.lua
@@ -0,0 +1,61 @@
+#!/usr/bin/lua
+
+local json = require("json")
+
+s = io.read("*a")
+
+local j=json.decode(s)
+
+local tpl=assert(io.open(os.getenv("GROFF_TEMPLATE"), "r"))
+
+function getPositions()
+ local str="===\nlrxbni\n.\n"
+ local str2=".TS\n"
+ local total=0
+ for _,a in pairs(j["articles"]) do
+ local escname=a["name"]
+ local subtot=a["price"]*a["amount"]
+ total=total+subtot
+ str=str..string.format("%d\tT{\n%s\nT}\t%.2f\n", a["amount"], escname, subtot)
+ str2=str2.."llxni\n"
+ end
+ str=str..string.format("\n\tTOTAL\t%.2f\n", total)
+ return str2..str..".TE";
+end
+
+local fctbl={
+ ["sale_id"]=function()
+ return j["sale_id"]
+ end,
+ ["positions"]=function()
+ return getPositions()
+ end,
+ ["today"]=function()
+ return os.date("%Y-%m-%d %H:%M")
+ end,
+}
+
+function processLine(t)
+ a,b,name= string.find(t, "{{([^}]+)}}")
+ if name then
+ io.write(string.sub(t,1,a-1))
+ if fctbl[name] then
+ io.write(fctbl[name]())
+ else
+ io.write("{{"..name.."}}")
+ end
+ processLine(string.sub(t,b+1))
+ else
+ io.write(t)
+ end
+end
+
+while true do
+ t=tpl:read("*line")
+ if not t then
+ break
+ end
+ processLine(t.."\n")
+end
+
+tpl:close()
diff --git a/template.roff b/template.roff
@@ -40,7 +40,9 @@
RECEIPT
+.na
{{positions}}
+.ad
AMIV an der ETH
.br
