Making a flowchart programmatically

docs/flowchart/main_scxml_to_jani.gv

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+digraph G {
+concentrate=true;
+splines="ortho";
+rankdir="LR";
+subgraph legend{
+    rank = min;
+    label = "legend";
+    Legend [shape=none, margin=0, label = <
+        <table cellspacing="0" cellpadding="0" border="1"><tr><td>Code2flow Legend</td></tr><tr><td>
+        <table cellspacing="0">
+        <tr><td>Regular function</td><td width="50px" bgcolor='#cccccc'></td></tr>
+        <tr><td>Trunk function (nothing calls this)</td><td bgcolor='#966F33'></td></tr>
+        <tr><td>Leaf function (this calls nothing else)</td><td bgcolor='#6db33f'></td></tr>
+        <tr><td>Function call</td><td><font color='black'>&#8594;</font></td></tr>
+        </table></td></tr></table>
+        >];
+}node_70803d0b [label="176: add_jani_property()" name="jani_model::JaniModel.add_jani_property" shape="rect" style="rounded,filled" fillcolor="#6db33f" ];
+node_256e0f1c [label="0: (global)()" name="main::(global)" shape="rect" style="rounded,filled" fillcolor="#966F33" ];
+node_a1efae00 [label="59: main_scxml_to_jani()" name="main::main_scxml_to_jani" shape="rect" style="rounded,filled" fillcolor="#cccccc" ];
+node_36290646 [label="72: convert_multiple_scxmls_to_jani()" name="scxml_to_jani::convert_multiple_scxmls_to_jani" shape="rect" style="rounded,filled" fillcolor="#cccccc" ];
+node_d3ef4dfe [label="108: preprocess_jani_expressions()" name="scxml_to_jani::preprocess_jani_expressions" shape="rect" style="rounded,filled" fillcolor="#cccccc" ];
+node_77ff91b2 [label="84: expand_members()" name="struct_definition::StructDefinition.expand_members" shape="rect" style="rounded,filled" fillcolor="#cccccc" ];
+node_9139c69f [label="259: export_plain_scxml_models()" name="top_level_interpreter::export_plain_scxml_models" shape="rect" style="rounded,filled" fillcolor="#cccccc" ];
+node_c10f528f [label="193: generate_plain_scxml_models_and_timers()" name="top_level_interpreter::generate_plain_scxml_models_and_timers" shape="rect" style="rounded,filled" fillcolor="#cccccc" ];
+node_fefaa4f0 [label="286: interpret_top_level_xml()" name="top_level_interpreter::interpret_top_level_xml" shape="rect" style="rounded,filled" fillcolor="#cccccc" ];
+node_faeff58b [label="97: parse_main_xml()" name="top_level_interpreter::parse_main_xml" shape="rect" style="rounded,filled" fillcolor="#cccccc" ];
+node_256e0f1c -> node_a1efae00 [color="#F0E442" penwidth="2"];
+node_a1efae00 -> node_fefaa4f0 [color="#000000" penwidth="2"];
+node_77ff91b2 -> node_77ff91b2 [color="#56B4E9" penwidth="2"];
+node_fefaa4f0 -> node_70803d0b [color="#000000" penwidth="2"];
+node_fefaa4f0 -> node_36290646 [color="#000000" penwidth="2"];
+node_fefaa4f0 -> node_d3ef4dfe [color="#000000" penwidth="2"];
+node_fefaa4f0 -> node_77ff91b2 [color="#000000" penwidth="2"];
+node_fefaa4f0 -> node_9139c69f [color="#000000" penwidth="2"];
+node_fefaa4f0 -> node_c10f528f [color="#000000" penwidth="2"];
+node_fefaa4f0 -> node_faeff58b [color="#000000" penwidth="2"];
+subgraph cluster_8eda4961 {
+    label="File: jani_model";
+    name="jani_model";
+    style="filled";
+    graph[style=dotted];
+    subgraph cluster_0431ce20 {
+        node_70803d0b;
+        label="Class: JaniModel";
+        name="JaniModel";
+        style="filled";
+        graph[style=dotted];
+    };
+};
+subgraph cluster_14e33554 {
+    node_a1efae00 node_256e0f1c;
+    label="File: main";
+    name="main";
+    style="filled";
+    graph[style=dotted];
+};
+subgraph cluster_6dd9483b {
+    node_36290646 node_d3ef4dfe;
+    label="File: scxml_to_jani";
+    name="scxml_to_jani";
+    style="filled";
+    graph[style=dotted];
+};
+subgraph cluster_e700bafc {
+    label="File: struct_definition";
+    name="struct_definition";
+    style="filled";
+    graph[style=dotted];
+    subgraph cluster_bb5376bd {
+        node_77ff91b2;
+        label="Class: StructDefinition";
+        name="StructDefinition";
+        style="filled";
+        graph[style=dotted];
+    };
+};
+subgraph cluster_1dad82a2 {
+    node_faeff58b node_c10f528f node_9139c69f node_fefaa4f0;
+    label="File: top_level_interpreter";
+    name="top_level_interpreter";
+    style="filled";
+    graph[style=dotted];
+};
+}

docs/flowchart/requirements.txt

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+code2flow==2.5.1

docs/flowchart/run.sh

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+#!/usr/bin/sh
+AS2FM_PKG=../../src/as2fm
+
+code2flow \
+-o main_scxml_to_jani.svg \
+--target-function main_scxml_to_jani \
+--upstream-depth 2 \
+--downstream-depth 2 \
+$AS2FM_PKG/*