From 1561cf50a1758d233b78b82e48bc5d0ea320c1b6 Mon Sep 17 00:00:00 2001
From: Matthias Baumann <matthias.baumann@tu-dresden.de>
Date: Mon, 25 Jan 2021 17:02:31 +0100
Subject: [PATCH] New package circuitikz; addresses #158

---
 HISTORY.md                             |  2 ++
 list-of-macros.md                      | 21 ++++++++++++
 tests/test_packages/test_circuitikz.py | 44 ++++++++++++++++++++++++++
 yalafi/packages/circuitikz.py          | 29 +++++++++++++++++
 4 files changed, 96 insertions(+)
 create mode 100644 tests/test_packages/test_circuitikz.py
 create mode 100644 yalafi/packages/circuitikz.py

diff --git a/HISTORY.md b/HISTORY.md
index 3fa2fd05..71e6d170 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -11,6 +11,8 @@ Work in progress
     (PR [#162](../../pull/162))
     - macros \\setmathfont, \\unimathsetup
     - unicode math operators
+  - new package circuitikz: environment circuitikz
+    (issue [#158](../../issues/158))
   - package amsthm: added macro \\newtheoremstyle; **thanks to @torik42**
     (PR [#164](../../pull/164))
   - package babel
diff --git a/list-of-macros.md b/list-of-macros.md
index a664d697..5a1f3803 100644
--- a/list-of-macros.md
+++ b/list-of-macros.md
@@ -16,6 +16,7 @@ Please note that not everything has to be declared.
 [amsthm](#package-amsthm),
 [babel](#package-babel),
 [biblatex](#package-biblatex),
+[circuitikz](#package-circuitikz),
 [geometry](#package-geometry),
 [glossaries](#package-glossaries),
 [glossaries-extra](#package-glossaries-extra),
@@ -201,6 +202,26 @@ tests: [tests/test\_packages/test\_biblatex.py](tests/test_packages/test_biblate
 \\printbibliography
 
 
+## Package circuitikz
+
+Source: [yalafi/packages/circuitikz.py](yalafi/packages/circuitikz.py),
+tests: [tests/test\_packages/test\_circuitikz.py](tests/test_packages/test_circuitikz.py)
+
+We simply remove the circuit in environment 'circuitikz'.
+
+**Loaded packages**
+
+[tikz](#package-tikz)
+
+**Macros**
+
+\\ctikzset
+
+**Environments**
+
+circuitikz
+
+
 ## Package geometry
 
 Source: [yalafi/packages/geometry.py](yalafi/packages/geometry.py),
diff --git a/tests/test_packages/test_circuitikz.py b/tests/test_packages/test_circuitikz.py
new file mode 100644
index 00000000..89eff6a5
--- /dev/null
+++ b/tests/test_packages/test_circuitikz.py
@@ -0,0 +1,44 @@
+
+
+import pytest
+from yalafi import parameters, parser, utils
+
+preamble = '\\usepackage{circuitikz}\n'
+
+def get_plain(latex):
+    parms = parameters.Parameters()
+    p = parser.Parser(parms)
+    plain, nums = utils.get_txt_pos(p.parse(preamble + latex))
+    assert len(plain) == len(nums)
+    return plain
+
+
+data_test_macros_latex = [
+
+    (r'A\ctikzset{X}B', 'AB'),
+    (r'A\usetikzlibrary XB', 'AB'),
+    (
+r"""
+A
+\begin{circuitikz}
+	\ctikzset{voltage/bump b/.initial=0} % defines arrow's curvature
+	\draw (0,3) to[short,o-*] (1,3) -- (1,3.5) to[R,l=$R$] (4,3.5) to[L=$L$] (7,3.5) -- (7,3) to[short,i=$I_{Last}$,*-] (9,3)
+	to[R,l=$R_{Last}$] (9,0) to[short,-o] (0,0);
+	\draw (1,3) -- (1,2.5) to[C,l_=$C$] (7,2.5) -- (7,3);
+	\draw (0,3) to[open,v=$U_e$] (0,0);
+\end{circuitikz}
+B
+""",
+r"""
+A
+B
+"""
+    ),
+
+]
+
+@pytest.mark.parametrize('latex,plain_expected', data_test_macros_latex)
+def test_macros_latex(latex, plain_expected):
+    plain = get_plain(latex)
+    assert plain == plain_expected
+
diff --git a/yalafi/packages/circuitikz.py b/yalafi/packages/circuitikz.py
new file mode 100644
index 00000000..c7479363
--- /dev/null
+++ b/yalafi/packages/circuitikz.py
@@ -0,0 +1,29 @@
+
+#
+#   YaLafi module for LaTeX package circuitikz
+#
+
+from yalafi.defs import Environ, InitModule
+
+require_packages = ['tikz']
+
+def init_module(parser, options):
+    parms = parser.parms
+
+    macros_latex = r"""
+
+        \newcommand{\ctikzset}[1]{}
+
+    """
+
+    macros_python = []
+
+    environments = [
+
+        Environ(parms, 'circuitikz', remove=True, add_pars=False),
+
+    ]
+
+    return InitModule(macros_latex=macros_latex, macros_python=macros_python,
+                        environments=environments)
+