Merge pull request #103 from Kolaru/italic_hbar

Make hbar italic

Project.toml

@@ -1,7 +1,7 @@
 name = "MathTeXEngine"
 uuid = "0a4f8689-d25c-4efe-a92b-7142dfc1aa53"
 authors = ["Benoît Richard <[email protected]>"]
-version = "0.5.5"
+version = "0.5.6"
 
 [deps]
 AbstractTrees = "1520ce14-60c1-5f80-bbc7-55ef81b5835c"

README.md

@@ -1,6 +1,6 @@
 # MathTeXEngine
 
-This is a work in progress package aimed at providing a pure Julia engine for LaTeX math mode. It is composed of two main parts: a LaTeX parser and a LaTeX engine, both only for LaTeX math mode.
+This is a package aimed at providing a pure Julia engine for LaTeX math mode. It is composed of two main parts: a LaTeX parser and a LaTeX engine, both only for LaTeX math mode.
 
 # Main features
 
@@ -98,6 +98,8 @@ julia> generate_tex_elements(L"A_{B_{C_D}}")
 
 Parsing is done through the exported function `texparse` into nested `TeXExpr` objects forming a tree. The parser does not perform any operation to layout the elements, it only transforms them into a syntax tree.
 
+The readme file in the `src/parser` folder contains more details about the inner working of the parser.
+
 ## Supported constructions
 
 The table below contains the list of all supported LaTeX construction and their representation when parsed.
@@ -165,4 +167,8 @@ julia> expr.args[1].args
 └─ '2'
 
  nothing
-```
+```
+
+# Acknowledgement
+
+The font inspector site [FontDrop!](https://fontdrop.info) has been invaluable for this package.

prototype/Project.toml

@@ -1,6 +1,8 @@
 [deps]
 CairoMakie = "13f3f980-e62b-5c42-98c6-ff1f3baf88f0"
 Colors = "5ae59095-9a9b-59fe-a467-6f913c188581"
+FreeType = "b38be410-82b0-50bf-ab77-7b57e271db43"
+FreeTypeAbstraction = "663a7486-cb36-511b-a19d-713bb74d65c9"
 GeometryBasics = "5c1252a2-5f33-56bf-86c9-59e7332b4326"
 LaTeXStrings = "b964fa9f-0449-5b57-a5c2-d3ea65f4040f"
 Makie = "ee78f7c6-11fb-53f2-987a-cfe4a2b5a57a"

prototype/glyphtest.jl

@@ -5,8 +5,7 @@ Pkg.activate("prototype")
 using MathTeXEngine
 using CairoMakie
 
-tex = L"\int dx \theta 2 x"
-text(0, 0 ; text = tex, textsize=20)
-
+tex = L"\hbar \omega"
+text(0, 0 ; text = tex, fontsize = 120)
 
 elems = generate_tex_elements(tex)

prototype/show_glyphs.jl

@@ -0,0 +1,21 @@
+using CairoMakie
+using MathTeXEngine
+
+offset = 8400
+ncols = 30
+nrows = 15
+
+glyph_ids = [offset + j + (i -1)*ncols for i in 1:nrows, j in 1:ncols]
+font = "assets/fonts/NewComputerModern/NewCMMath-Regular.otf"
+fig = Figure(; resolution = (1800, 1000))
+
+for ci in CartesianIndices(glyph_ids)
+    gid = glyph_ids[ci]
+    try
+        Label(fig[ci[1], ci[2]], "$(Char(gid))" ; font)
+    catch
+        Label(fig[ci[1], ci[2]], " " ; font)
+    end
+end
+
+fig

reference/compare.jl

@@ -9,6 +9,7 @@ include("references.jl")
 const git = Git.git()
 
 @testset begin "Reference images"
+    readchomp(`$git fetch`)
     master_id = readchomp(`$git rev-parse --short master`)
     current_id = readchomp(`$git rev-parse --short HEAD`)
     is_clean = isempty(readchomp(`$git status -s`))

src/engine/new_computer_modern_data.jl

@@ -40,3 +40,9 @@ for i in 0:24
         _symbol_to_new_computer_modern[small] = (cmmath_fontpath, 3352 + i)
     end
 end
+
+# Special case : get hbar from the italic font
+_symbol_to_new_computer_modern['ħ'] = (
+    joinpath("NewComputerModern", "NewCM10-Italic.otf"),
+    231
+)