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<h1>stdlib_ansi_to_string.f90
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<h2><span class="anchor" id="src"></span>Source Code</h2>
<div class="hl codehilite"><pre><span></span><a id="ln-1" name="ln-1" href="#ln-1"></a><span class="c">! SPDX-Identifier: MIT</span>
<a id="ln-2" name="ln-2" href="#ln-2"></a>
<a id="ln-3" name="ln-3" href="#ln-3"></a><span class="c">!> Implementation of the conversion to enumerator and identifier types to strings</span>
<a id="ln-4" name="ln-4" href="#ln-4"></a><span class="k">submodule</span><span class="w"> </span><span class="p">(</span><span class="n">stdlib_ansi</span><span class="p">)</span><span class="w"> </span><span class="n">stdlib_ansi_to_string</span>
<a id="ln-5" name="ln-5" href="#ln-5"></a><span class="w"> </span><span class="k">implicit none</span>
<a id="ln-6" name="ln-6" href="#ln-6"></a>
<a id="ln-7" name="ln-7" href="#ln-7"></a><span class="k"> </span><span class="kt">character</span><span class="p">,</span><span class="w"> </span><span class="k">parameter</span><span class="w"> </span><span class="kd">::</span><span class="w"> </span><span class="n">esc</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">achar</span><span class="p">(</span><span class="mi">27</span><span class="p">),</span><span class="w"> </span><span class="n">chars</span><span class="p">(</span><span class="mi">0</span><span class="p">:</span><span class="mi">9</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">&</span>
<a id="ln-8" name="ln-8" href="#ln-8"></a><span class="w"> </span><span class="p">[</span><span class="s2">"0"</span><span class="p">,</span><span class="w"> </span><span class="s2">"1"</span><span class="p">,</span><span class="w"> </span><span class="s2">"2"</span><span class="p">,</span><span class="w"> </span><span class="s2">"3"</span><span class="p">,</span><span class="w"> </span><span class="s2">"4"</span><span class="p">,</span><span class="w"> </span><span class="s2">"5"</span><span class="p">,</span><span class="w"> </span><span class="s2">"6"</span><span class="p">,</span><span class="w"> </span><span class="s2">"7"</span><span class="p">,</span><span class="w"> </span><span class="s2">"8"</span><span class="p">,</span><span class="w"> </span><span class="s2">"9"</span><span class="p">]</span>
<a id="ln-9" name="ln-9" href="#ln-9"></a>
<a id="ln-10" name="ln-10" href="#ln-10"></a><span class="k">contains</span>
<a id="ln-11" name="ln-11" href="#ln-11"></a>
<a id="ln-12" name="ln-12" href="#ln-12"></a><span class="w"> </span><span class="c">!> Transform a color code into an actual ANSI escape sequence</span>
<a id="ln-13" name="ln-13" href="#ln-13"></a><span class="w"> </span><span class="k">pure module function </span><span class="n">to_string_ansi_code</span><span class="p">(</span><span class="n">code</span><span class="p">)</span><span class="w"> </span><span class="k">result</span><span class="p">(</span><span class="n">str</span><span class="p">)</span>
<a id="ln-14" name="ln-14" href="#ln-14"></a><span class="w"> </span><span class="c">!> Color code to be used</span>
<a id="ln-15" name="ln-15" href="#ln-15"></a><span class="w"> </span><span class="k">type</span><span class="p">(</span><span class="n">ansi_code</span><span class="p">),</span><span class="w"> </span><span class="k">intent</span><span class="p">(</span><span class="n">in</span><span class="p">)</span><span class="w"> </span><span class="kd">::</span><span class="w"> </span><span class="n">code</span>
<a id="ln-16" name="ln-16" href="#ln-16"></a><span class="w"> </span><span class="c">!> ANSI escape sequence representing the color code</span>
<a id="ln-17" name="ln-17" href="#ln-17"></a><span class="w"> </span><span class="kt">character</span><span class="p">(</span><span class="nb">len</span><span class="o">=</span><span class="p">:),</span><span class="w"> </span><span class="k">allocatable</span><span class="w"> </span><span class="kd">::</span><span class="w"> </span><span class="n">str</span>
<a id="ln-18" name="ln-18" href="#ln-18"></a>
<a id="ln-19" name="ln-19" href="#ln-19"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">anycolor</span><span class="p">(</span><span class="n">code</span><span class="p">))</span><span class="w"> </span><span class="k">then</span>
<a id="ln-20" name="ln-20" href="#ln-20"></a><span class="k"> </span><span class="n">str</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">esc</span><span class="w"> </span><span class="o">//</span><span class="w"> </span><span class="s2">"[0"</span><span class="w"> </span><span class="c">! Always reset the style</span>
<a id="ln-21" name="ln-21" href="#ln-21"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">code</span><span class="p">%</span><span class="n">style</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="p">.</span><span class="nb">and</span><span class="p">.</span><span class="w"> </span><span class="n">code</span><span class="p">%</span><span class="n">style</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">10</span><span class="p">)</span><span class="w"> </span><span class="n">str</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">str</span><span class="w"> </span><span class="o">//</span><span class="w"> </span><span class="s2">";"</span><span class="w"> </span><span class="o">//</span><span class="w"> </span><span class="n">chars</span><span class="p">(</span><span class="n">code</span><span class="p">%</span><span class="n">style</span><span class="p">)</span>
<a id="ln-22" name="ln-22" href="#ln-22"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">code</span><span class="p">%</span><span class="n">fg</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="p">.</span><span class="nb">and</span><span class="p">.</span><span class="w"> </span><span class="n">code</span><span class="p">%</span><span class="n">fg</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">10</span><span class="p">)</span><span class="w"> </span><span class="n">str</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">str</span><span class="w"> </span><span class="o">//</span><span class="w"> </span><span class="s2">";3"</span><span class="w"> </span><span class="o">//</span><span class="w"> </span><span class="n">chars</span><span class="p">(</span><span class="n">code</span><span class="p">%</span><span class="n">fg</span><span class="p">)</span>
<a id="ln-23" name="ln-23" href="#ln-23"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">code</span><span class="p">%</span><span class="n">bg</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="p">.</span><span class="nb">and</span><span class="p">.</span><span class="w"> </span><span class="n">code</span><span class="p">%</span><span class="n">bg</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">10</span><span class="p">)</span><span class="w"> </span><span class="n">str</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">str</span><span class="w"> </span><span class="o">//</span><span class="w"> </span><span class="s2">";4"</span><span class="w"> </span><span class="o">//</span><span class="w"> </span><span class="n">chars</span><span class="p">(</span><span class="n">code</span><span class="p">%</span><span class="n">bg</span><span class="p">)</span>
<a id="ln-24" name="ln-24" href="#ln-24"></a><span class="w"> </span><span class="n">str</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">str</span><span class="w"> </span><span class="o">//</span><span class="w"> </span><span class="s2">"m"</span>
<a id="ln-25" name="ln-25" href="#ln-25"></a><span class="w"> </span><span class="k">else</span>
<a id="ln-26" name="ln-26" href="#ln-26"></a><span class="k"> </span><span class="n">str</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s2">""</span>
<a id="ln-27" name="ln-27" href="#ln-27"></a><span class="w"> </span><span class="k">end if</span>
<a id="ln-28" name="ln-28" href="#ln-28"></a><span class="k"> end function </span><span class="n">to_string_ansi_code</span>
<a id="ln-29" name="ln-29" href="#ln-29"></a>
<a id="ln-30" name="ln-30" href="#ln-30"></a><span class="w"> </span><span class="c">!> Check whether the code describes any color / style or is just a stub</span>
<a id="ln-31" name="ln-31" href="#ln-31"></a><span class="w"> </span><span class="k">pure function </span><span class="n">anycolor</span><span class="p">(</span><span class="n">code</span><span class="p">)</span>
<a id="ln-32" name="ln-32" href="#ln-32"></a><span class="w"> </span><span class="c">!> Escape sequence</span>
<a id="ln-33" name="ln-33" href="#ln-33"></a><span class="w"> </span><span class="k">type</span><span class="p">(</span><span class="n">ansi_code</span><span class="p">),</span><span class="w"> </span><span class="k">intent</span><span class="p">(</span><span class="n">in</span><span class="p">)</span><span class="w"> </span><span class="kd">::</span><span class="w"> </span><span class="n">code</span>
<a id="ln-34" name="ln-34" href="#ln-34"></a><span class="w"> </span><span class="c">!> Any color / style is active</span>
<a id="ln-35" name="ln-35" href="#ln-35"></a><span class="w"> </span><span class="kt">logical</span><span class="w"> </span><span class="kd">::</span><span class="w"> </span><span class="n">anycolor</span>
<a id="ln-36" name="ln-36" href="#ln-36"></a>
<a id="ln-37" name="ln-37" href="#ln-37"></a><span class="w"> </span><span class="n">anycolor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">code</span><span class="p">%</span><span class="n">fg</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="p">.</span><span class="nb">or</span><span class="p">.</span><span class="w"> </span><span class="n">code</span><span class="p">%</span><span class="n">bg</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="p">.</span><span class="nb">or</span><span class="p">.</span><span class="w"> </span><span class="n">code</span><span class="p">%</span><span class="n">style</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="mi">0</span>
<a id="ln-38" name="ln-38" href="#ln-38"></a><span class="w"> </span><span class="k">end function </span><span class="n">anycolor</span>
<a id="ln-39" name="ln-39" href="#ln-39"></a>
<a id="ln-40" name="ln-40" href="#ln-40"></a><span class="k">end submodule </span><span class="n">stdlib_ansi_to_string</span>
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