Remap accents to directional single-quotes

See: https://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html#postscript

Makefile

@@ -1,11 +1,27 @@
-pdfs := $(wildcard tmp/*.pdf)
+all: pdfs font-list
 
-all: $(pdfs)
+pdfs: $(wildcard tmp/*.pdf)
 
 %.pdf: %.out
  @gropdf -d < $^ > $@
 
-watch:; @watchman -- trigger . _ 'tmp/*.out' -- make all
-unwatch:; @watchman -- watch-del .
+
+font-list := test/fixtures/pdf-fonts
+font-list: $(font-list).pdf
+
+$(font-list).pdf: $(font-list).roff
+ @ groff -Tpdf -Z $(if $(VERBOSE),-rV1) $< \
+ | tee $(font-list).out \
+ | gropdf -d > $@
+
+
+watch = watchman -- trigger . $(1) '$(2)' -- make $(1)
+
+watch:
+ @$(call watch,pdfs,tmp/*.out)
+ @$(call watch,font-list,$(font-list).roff)
+
+unwatch:
+ @watchman -- watch-del .
 
 .PHONY: watch unwatch

lib/postproc/canvas.js

@@ -45,6 +45,7 @@ class CanvasRenderer extends Postprocessor{
 
  resetFontStyles(){
  this.fixKerning = true;
+ this.fixQuotes = true;
  this.fontStyles = Object.assign({}, fontStyles);
  this.fonts = [0, 0, 0, 0, 0, 0, "S", "ZD"];
  this.fonts.forEach((font, index) => {
@@ -586,6 +587,7 @@ class CanvasRenderer extends Postprocessor{
 
 
  print(text){
+ text = this.remapChars(text);
  this.context.save();
  if(null !== this.tm){
  this.context.translate(this.x, this.y);
@@ -623,6 +625,13 @@ class CanvasRenderer extends Postprocessor{
  }
 
 
+ remapChars(data){
+ return this.fixQuotes
+ ? data.replace(/`/g, "\u{2018}").replace(/'/g, "\u{2019}")
+ : data;
+ }
+
+
  setColour(data){
  this.colour = this.parseColour(data);
  this.context.fillStyle = this.colour;

preview-canvas.html

@@ -4,6 +4,7 @@
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 <meta http-equiv="X-UA-Compatible" content="IE=edge" />
 <meta name="viewport" content="initial-scale=1, minimum-scale=1" />
+<link rel="stylesheet" type="text/css" href="node_modules/urw-core35-fonts/index.css" />
 <title>Canvas Preview</title>
 
 <style>
@@ -15,6 +16,7 @@
  position: fixed;
  top: 0;
  left: 0;
+ width: 100vw;
 }
 </style>
 </head>
@@ -27,7 +29,7 @@
  <script>
  "use strict";
 
- const source = require("fs").readFileSync("./tmp/perlre.out", "utf8");
+ const source = require("fs").readFileSync("./test/fixtures/pdf-fonts.out", "utf8");
 
  const CanvasRenderer = require("./lib/postproc/canvas.js");
  const renderer = new CanvasRenderer();

test/fixtures/.gitignore

@@ -0,0 +1,2 @@
+!quote-mystery.pdf
+pdf-fonts.out

test/fixtures/pdf-fonts.roff

@@ -0,0 +1,85 @@
+'\" ==========================================
+'\" Print a small sample of each core PDF font
+'\" ------------------------------------------
+.ds LQ `
+.ds RQ '
+.ds QQ ABC \\*(LQ123\\*(RQ XYZ
+.
+.ad r
+.ta (2.5i)
+.ps 32p
+.vs 2m
+.
+.de test
+. ft \\$1
+. if '\\nV'1' .tm Setting Font: \\$1
+\\$1\t\\*(QQ
+. br
+..
+.
+.test AB
+.test ABI
+.test AI
+.test AR
+.test BMB
+.test BMBI
+.test BMI
+.test BMR
+.test CB
+.test CBI
+.test CI
+.test CR
+.test HB
+.test HBI
+.test HI
+.test HNB
+.test HNBI
+.test HNI
+.test HNR
+.test HR
+.test NB
+.test NBI
+.test NI
+.test NR
+.test PB
+.test PBI
+.test PI
+.test PR
+.test TB
+.test TBI
+.test TI
+.test TR
+.test U-AB
+.test U-ABI
+.test U-AI
+.test U-AR
+.test U-BMB
+.test U-BMBI
+.test U-BMI
+.test U-BMR
+.test U-CB
+.test U-CBI
+.test U-CI
+.test U-CR
+.test U-HB
+.test U-HBI
+.test U-HI
+.test U-HNB
+.test U-HNBI
+.test U-HNI
+.test U-HNR
+.test U-HR
+.test U-NB
+.test U-NBI
+.test U-NI
+.test U-NR
+.test U-PB
+.test U-PBI
+.test U-PI
+.test U-PR
+.test U-TB
+.test U-TBI
+.test U-TI
+.test U-TR
+.test U-ZCMI
+.test ZCMI