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author | Kartik K. Agaram <vc@akkartik.com> | 2016-08-27 20:49:03 -0700 |
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committer | Kartik K. Agaram <vc@akkartik.com> | 2016-08-27 20:49:03 -0700 |
commit | cd9bb850caeca88747a25436fc65c67c6d5cd89a (patch) | |
tree | 34ea30beb19b5fafe855b951b9468d2a9e915492 /html/016dilated_reagent.cc.html | |
parent | e947da75bd926da6d533fd73b352c16c8417b3f6 (diff) | |
download | mu-cd9bb850caeca88747a25436fc65c67c6d5cd89a.tar.gz |
3266
Diffstat (limited to 'html/016dilated_reagent.cc.html')
-rw-r--r-- | html/016dilated_reagent.cc.html | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/html/016dilated_reagent.cc.html b/html/016dilated_reagent.cc.html index d7de0ec6..67bf9462 100644 --- a/html/016dilated_reagent.cc.html +++ b/html/016dilated_reagent.cc.html @@ -89,32 +89,35 @@ $error: <span class="Constant">0</span> <span class="Comment">// Assume the first letter is an open bracket, and read everything until the</span> <span class="Comment">// matching close bracket.</span> -<span class="Comment">// We balance {} () and []. And we skip one character after '\'.</span> +<span class="Comment">// We balance {} () and [].</span> string slurp_balanced_bracket<span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> ostringstream result<span class="Delimiter">;</span> <span class="Normal">char</span> c<span class="Delimiter">;</span> list<<span class="Normal">char</span>> open_brackets<span class="Delimiter">;</span> <span class="Normal">while</span> <span class="Delimiter">(</span>in >> c<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Comment">// always silently skip the next character</span> - result << c<span class="Delimiter">;</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Delimiter">(</span>in >> c<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span> - result << c<span class="Delimiter">;</span> - <span class="Identifier">continue</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'('</span><span class="Delimiter">)</span> open_brackets<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>c<span class="Delimiter">);</span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">')'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + <span class="Normal">if</span> <span class="Delimiter">(</span>open_brackets<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> || open_brackets<span class="Delimiter">.</span>back<span class="Delimiter">()</span> != <span class="Constant">'('</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + raise << <span class="Constant">"unbalanced ')'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> + <span class="Identifier">continue</span><span class="Delimiter">;</span> + <span class="Delimiter">}</span> assert<span class="Delimiter">(</span>open_brackets<span class="Delimiter">.</span>back<span class="Delimiter">()</span> == <span class="Constant">'('</span><span class="Delimiter">);</span> open_brackets<span class="Delimiter">.</span>pop_back<span class="Delimiter">();</span> <span class="Delimiter">}</span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'['</span><span class="Delimiter">)</span> open_brackets<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>c<span class="Delimiter">);</span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">']'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - assert<span class="Delimiter">(</span>open_brackets<span class="Delimiter">.</span>back<span class="Delimiter">()</span> == <span class="Constant">'['</span><span class="Delimiter">);</span> + <span class="Normal">if</span> <span class="Delimiter">(</span>open_brackets<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> || open_brackets<span class="Delimiter">.</span>back<span class="Delimiter">()</span> != <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + raise << <span class="Constant">"unbalanced ']'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> + <span class="Identifier">continue</span><span class="Delimiter">;</span> + <span class="Delimiter">}</span> open_brackets<span class="Delimiter">.</span>pop_back<span class="Delimiter">();</span> <span class="Delimiter">}</span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'{'</span><span class="Delimiter">)</span> open_brackets<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>c<span class="Delimiter">);</span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'}'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - assert<span class="Delimiter">(</span>open_brackets<span class="Delimiter">.</span>back<span class="Delimiter">()</span> == <span class="Constant">'{'</span><span class="Delimiter">);</span> + <span class="Normal">if</span> <span class="Delimiter">(</span>open_brackets<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> || open_brackets<span class="Delimiter">.</span>back<span class="Delimiter">()</span> != <span class="Constant">'{'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + raise << <span class="Constant">"unbalanced '}'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> + <span class="Identifier">continue</span><span class="Delimiter">;</span> + <span class="Delimiter">}</span> open_brackets<span class="Delimiter">.</span>pop_back<span class="Delimiter">();</span> <span class="Delimiter">}</span> result << c<span class="Delimiter">;</span> |