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path: root/main.go
blob: 267c4ea1f48862afa2a761de2c7efbcdd59c9c26 (plain) (blame)
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package main

import (
	"fmt"
	"log"
	"net/http"
	"time"

	"github.com/gorilla/handlers"
	"github.com/gorilla/mux"
)

const getwtxt = "0.1"

func main() {

	index := mux.NewRouter().StrictSlash(true)
	api := index.PathPrefix("/api").Subrouter()

	// gorilla/mux makes path validation painless
	index.Path("/").
		Methods("GET").
		HandlerFunc(indexHandler)
	index.Path("/api").
		Methods("GET").
		HandlerFunc(apiBaseHandler)
	api.Path("/").
		Methods("GET").
		HandlerFunc(apiBaseHandler)
	api.Path("/{format:(?:plain)}").
		Methods("GET").
		HandlerFunc(apiFormatHandler)
	api.Path("/{format:(?:plain)}/{endpoint:(?:mentions|users|tweets)}").
		Methods("GET").
		Queries("url", "{url}", "q", "{query}").
		HandlerFunc(apiEndpointHandler)
	api.Path("/{format:(?:plain)}/{endpoint:users}").
		Methods("POST").
		Queries("url", "{url}", "nickname", "{nickname}").
		HandlerFunc(apiEndpointPOSTHandler)
	api.Path("/{format:(?:plain)}/tags").
		Methods("GET").
		HandlerFunc(apiTagsBaseHandler)
	api.Path("/{format:(?:plain)}/tags/{tags:[a-zA-Z0-9]+}").
		Methods("GET").
		HandlerFunc(apiTagsHandler)

	// format the port for the http.Server object
	portnum := fmt.Sprintf(":%v", confObj.port)
	// defines options for the http server.
	// handlers.CompressHandler gzips all responses.
	// Write/Read timeouts are self explanatory.
	server := &http.Server{
		Handler:      handlers.CompressHandler(index),
		Addr:         portnum,
		WriteTimeout: 15 * time.Second,
		ReadTimeout:  15 * time.Second,
	}

	log.Printf("Listening on port %v\n", confObj.port)
	err := server.ListenAndServe()
	if err != nil {
		log.Printf("%v\n", err)
	}

	closelog <- true
}
{ color: #008000; } .Constant { color: #00a0a0; } .Comment { color: #9090ff; } .Delimiter { color: #a04060; } .Identifier { color: #804000; } .CommentedCode { color: #6c6c6c; } --> </style> <script type='text/javascript'> <!-- --> </script> </head> <body> <pre id='vimCodeElement'> <span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span> _BROWSE_TRACE<span class="Delimiter">,</span> <span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span> Recipe_number[<span class="Constant">&quot;$browse-trace&quot;</span>] = _BROWSE_TRACE<span class="Delimiter">;</span> <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span> case _BROWSE_TRACE: <span class="Delimiter">{</span> start_trace_browser<span class="Delimiter">();</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Delimiter">}</span> <span class="Delimiter">:(before &quot;End Globals&quot;)</span> set&lt;long long int&gt; Visible<span class="Delimiter">;</span> long long int Top_of_screen = <span class="Constant">0</span><span class="Delimiter">;</span> long long int Last_printed_row = <span class="Constant">0</span><span class="Delimiter">;</span> map&lt;int<span class="Delimiter">,</span> long long int&gt; Trace_index<span class="Delimiter">;</span> <span class="Comment">// screen row -&gt; trace index</span> <span class="Delimiter">:(code)</span> void start_trace_browser<span class="Delimiter">()</span> <span class="Delimiter">{</span> if <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> cerr &lt;&lt; <span class="Constant">&quot;computing depth to display</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span> long long int min_depth = <span class="Constant">9999</span><span class="Delimiter">;</span> for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> trace_line&amp; curr_line = Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth &lt; min_depth<span class="Delimiter">)</span> min_depth = curr_line<span class="Delimiter">.</span>depth<span class="Delimiter">;</span> <span class="Delimiter">}</span> cerr &lt;&lt; <span class="Constant">&quot;depth is &quot;</span> &lt;&lt; min_depth &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> cerr &lt;&lt; <span class="Constant">&quot;computing lines to display</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span> for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> if <span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>depth == min_depth<span class="Delimiter">)</span> Visible<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>i<span class="Delimiter">);</span> <span class="Delimiter">}</span> tb_init<span class="Delimiter">();</span> Display_row = Display_column = <span class="Constant">0</span><span class="Delimiter">;</span> tb_event event<span class="Delimiter">;</span> Top_of_screen = <span class="Constant">0</span><span class="Delimiter">;</span> refresh_screen_rows<span class="Delimiter">();</span> while <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> render<span class="Delimiter">();</span> do <span class="Delimiter">{</span> tb_poll_event<span class="Delimiter">(</span>&amp;event<span class="Delimiter">);</span> <span class="Delimiter">}</span> while <span class="Delimiter">(</span>event<span class="Delimiter">.</span>type != TB_EVENT_KEY<span class="Delimiter">);</span> long long int key = event<span class="Delimiter">.</span>key ? event<span class="Delimiter">.</span>key : event<span class="Delimiter">.</span>ch<span class="Delimiter">;</span> if <span class="Delimiter">(</span>key == <span class="Constant">'q'</span> || key == <span class="Constant">'Q'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> if <span class="Delimiter">(</span>key == <span class="Constant">'j'</span> || key == TB_KEY_ARROW_DOWN<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// move cursor one line down</span> if <span class="Delimiter">(</span>Display_row &lt; Last_printed_row<span class="Delimiter">)</span> ++Display_row<span class="Delimiter">;</span> <span class="Delimiter">}</span> if <span class="Delimiter">(</span>key == <span class="Constant">'k'</span> || key == TB_KEY_ARROW_UP<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// move cursor one line up</span> if <span class="Delimiter">(</span>Display_row &gt; <span class="Constant">0</span><span class="Delimiter">)</span> --Display_row<span class="Delimiter">;</span> <span class="Delimiter">}</span> if <span class="Delimiter">(</span>key == <span class="Constant">'H'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// move cursor to top of screen</span> Display_row = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Delimiter">}</span> if <span class="Delimiter">(</span>key == <span class="Constant">'M'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// move cursor to center of screen</span> Display_row = tb_height<span class="Delimiter">()</span>/<span class="Constant">2</span><span class="Delimiter">;</span> <span class="Delimiter">}</span> if <span class="Delimiter">(</span>key == <span class="Constant">'L'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// move cursor to bottom of screen</span> Display_row = tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">;</span> <span class="Delimiter">}</span> if <span class="Delimiter">(</span>key == <span class="Constant">'J'</span> || key == TB_KEY_PGDN<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// page-down</span> if <span class="Delimiter">(</span>Trace_index<span class="Delimiter">.</span>find<span class="Delimiter">(</span>tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">)</span> != Trace_index<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span> Top_of_screen = Trace_index[tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span>]+<span class="Constant">1</span><span class="Delimiter">;</span> refresh_screen_rows<span class="Delimiter">();</span> <span class="Delimiter">}</span> <span class="Delimiter">}</span> if <span class="Delimiter">(</span>key == <span class="Constant">'K'</span> || key == TB_KEY_PGUP<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// page-up is more convoluted</span> <span class="CommentedCode">//? tb_shutdown(); //? 1</span> <span class="CommentedCode">//? cerr &lt;&lt; &quot;page-up: Top_of_screen is currently &quot; &lt;&lt; Top_of_screen &lt;&lt; '\n'; //? 1</span> for <span class="Delimiter">(</span>int screen_row = tb_height<span class="Delimiter">();</span> screen_row &gt; <span class="Constant">0</span> &amp;&amp; Top_of_screen &gt; <span class="Constant">0</span><span class="Delimiter">;</span> --screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span> --Top_of_screen<span class="Delimiter">;</span> if <span class="Delimiter">(</span>Top_of_screen &lt;= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> while <span class="Delimiter">(</span>Top_of_screen &gt; <span class="Constant">0</span> &amp;&amp; Visible<span class="Delimiter">.</span>find<span class="Delimiter">(</span>Top_of_screen<span class="Delimiter">)</span> == Visible<span class="Delimiter">.</span>end<span class="Delimiter">())</span> --Top_of_screen<span class="Delimiter">;</span> <span class="CommentedCode">//? cerr &lt;&lt; &quot;now &quot; &lt;&lt; Top_of_screen &lt;&lt; '\n'; //? 1</span> <span class="Delimiter">}</span> <span class="CommentedCode">//? exit(0); //? 1</span> if <span class="Delimiter">(</span>Top_of_screen &gt; <span class="Constant">0</span><span class="Delimiter">)</span> refresh_screen_rows<span class="Delimiter">();</span> <span class="Delimiter">}</span> if <span class="Delimiter">(</span>key == <span class="Constant">'G'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// go to bottom of screen; largely like page-up, interestingly</span> Top_of_screen = SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">)</span>-<span class="Constant">1</span><span class="Delimiter">;</span> for <span class="Delimiter">(</span>int screen_row = tb_height<span class="Delimiter">();</span> screen_row &gt; <span class="Constant">0</span> &amp;&amp; Top_of_screen &gt; <span class="Constant">0</span><span class="Delimiter">;</span> --screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span> --Top_of_screen<span class="Delimiter">;</span> if <span class="Delimiter">(</span>Top_of_screen &lt;= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> while <span class="Delimiter">(</span>Top_of_screen &gt; <span class="Constant">0</span> &amp;&amp; Visible<span class="Delimiter">.</span>find<span class="Delimiter">(</span>Top_of_screen<span class="Delimiter">)</span> == Visible<span class="Delimiter">.</span>end<span class="Delimiter">())</span> --Top_of_screen<span class="Delimiter">;</span> <span class="Delimiter">}</span> refresh_screen_rows<span class="Delimiter">();</span> <span class="Comment">// move cursor to bottom</span> Display_row = Last_printed_row<span class="Delimiter">;</span> refresh_screen_rows<span class="Delimiter">();</span> <span class="Delimiter">}</span> if <span class="Delimiter">(</span>key == TB_KEY_CARRIAGE_RETURN<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// expand lines under current by one level</span> <span class="CommentedCode">//? tb_shutdown();</span> assert<span class="Delimiter">(</span>Trace_index<span class="Delimiter">.</span>find<span class="Delimiter">(</span>Display_row<span class="Delimiter">)</span> != Trace_index<span class="Delimiter">.</span>end<span class="Delimiter">());</span> long long int start_index = Trace_index[Display_row]<span class="Delimiter">;</span> <span class="CommentedCode">//? cerr &lt;&lt; &quot;start_index is &quot; &lt;&lt; start_index &lt;&lt; '\n';</span> long long int index = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Comment">// simultaneously compute end_index and min_depth</span> int min_depth = <span class="Constant">9999</span><span class="Delimiter">;</span> for <span class="Delimiter">(</span>index = start_index+<span class="Constant">1</span><span class="Delimiter">;</span> index &lt; SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span> if <span class="Delimiter">(</span>Visible<span class="Delimiter">.</span>find<span class="Delimiter">(</span>index<span class="Delimiter">)</span> != Visible<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Identifier">break</span><span class="Delimiter">;</span> trace_line&amp; curr_line = Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span> if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> assert<span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth &gt; Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>start_index<span class="Delimiter">).</span>depth<span class="Delimiter">);</span> if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth &lt; min_depth<span class="Delimiter">)</span> min_depth = curr_line<span class="Delimiter">.</span>depth<span class="Delimiter">;</span> <span class="Delimiter">}</span> <span class="CommentedCode">//? cerr &lt;&lt; &quot;min_depth is &quot; &lt;&lt; min_depth &lt;&lt; '\n';</span> long long int end_index = index<span class="Delimiter">;</span> <span class="CommentedCode">//? cerr &lt;&lt; &quot;end_index is &quot; &lt;&lt; end_index &lt;&lt; '\n';</span> <span class="Comment">// mark as visible all intervening indices at min_depth</span> for <span class="Delimiter">(</span>index = start_index<span class="Delimiter">;</span> index &lt; end_index<span class="Delimiter">;</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span> trace_line&amp; curr_line = Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span> if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth == min_depth<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="CommentedCode">//? cerr &lt;&lt; &quot;adding &quot; &lt;&lt; index &lt;&lt; '\n';</span> Visible<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>index<span class="Delimiter">);</span> <span class="Delimiter">}</span> <span class="Delimiter">}</span> <span class="CommentedCode">//? exit(0);</span> refresh_screen_rows<span class="Delimiter">();</span> <span class="Delimiter">}</span> if <span class="Delimiter">(</span>key == TB_KEY_BACKSPACE || key == TB_KEY_BACKSPACE2<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// collapse all lines under current</span> assert<span class="Delimiter">(</span>Trace_index<span class="Delimiter">.</span>find<span class="Delimiter">(</span>Display_row<span class="Delimiter">)</span> != Trace_index<span class="Delimiter">.</span>end<span class="Delimiter">());</span> long long int start_index = Trace_index[Display_row]<span class="Delimiter">;</span> long long int index = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Comment">// end_index is the next line at a depth same as or lower than start_index</span> int initial_depth = Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>start_index<span class="Delimiter">).</span>depth<span class="Delimiter">;</span> for <span class="Delimiter">(</span>index = start_index+<span class="Constant">1</span><span class="Delimiter">;</span> index &lt; SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span> if <span class="Delimiter">(</span>Visible<span class="Delimiter">.</span>find<span class="Delimiter">(</span>index<span class="Delimiter">)</span> == Visible<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> trace_line&amp; curr_line = Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span> if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth &lt;= initial_depth<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Delimiter">}</span> long long int end_index = index<span class="Delimiter">;</span> <span class="Comment">// mark as visible all intervening indices at min_depth</span> for <span class="Delimiter">(</span>index = start_index+<span class="Constant">1</span><span class="Delimiter">;</span> index &lt; end_index<span class="Delimiter">;</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span> Visible<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>index<span class="Delimiter">);</span> <span class="Delimiter">}</span> refresh_screen_rows<span class="Delimiter">();</span> <span class="Delimiter">}</span> <span class="Delimiter">}</span> tb_shutdown<span class="Delimiter">();</span> <span class="Delimiter">}</span> <span class="Comment">// update Trace_indices for each screen_row on the basis of Top_of_screen and Visible</span> void refresh_screen_rows<span class="Delimiter">()</span> <span class="Delimiter">{</span> long long int screen_row = <span class="Constant">0</span><span class="Delimiter">,</span> index = <span class="Constant">0</span><span class="Delimiter">;</span> Trace_index<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> for <span class="Delimiter">(</span>screen_row = <span class="Constant">0</span><span class="Delimiter">,</span> index = Top_of_screen<span class="Delimiter">;</span> screen_row &lt; tb_height<span class="Delimiter">()</span> &amp;&amp; index &lt; SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++screen_row<span class="Delimiter">,</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// skip lines without depth for now</span> while <span class="Delimiter">(</span>Visible<span class="Delimiter">.</span>find<span class="Delimiter">(</span>index<span class="Delimiter">)</span> == Visible<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span> ++index<span class="Delimiter">;</span> if <span class="Delimiter">(</span>index &gt;= SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">))</span> <span class="Identifier">goto</span> done<span class="Delimiter">;</span> <span class="Delimiter">}</span> assert<span class="Delimiter">(</span>index &lt; SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">));</span> Trace_index[screen_row] = index<span class="Delimiter">;</span> <span class="Delimiter">}</span> done:<span class="Delimiter">;</span> <span class="Delimiter">}</span> void render<span class="Delimiter">()</span> <span class="Delimiter">{</span> long long int screen_row = <span class="Constant">0</span><span class="Delimiter">;</span> for <span class="Delimiter">(</span>screen_row = <span class="Constant">0</span><span class="Delimiter">;</span> screen_row &lt; tb_height<span class="Delimiter">();</span> ++screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span> if <span class="Delimiter">(</span>Trace_index<span class="Delimiter">.</span>find<span class="Delimiter">(</span>screen_row<span class="Delimiter">)</span> == Trace_index<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Identifier">break</span><span class="Delimiter">;</span> trace_line&amp; curr_line = Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>Trace_index[screen_row]<span class="Delimiter">);</span> ostringstream out<span class="Delimiter">;</span> out &lt;&lt; std::setw<span class="Delimiter">(</span><span class="Constant">4</span><span class="Delimiter">)</span> &lt;&lt; curr_line<span class="Delimiter">.</span>depth &lt;&lt; <span class="Constant">' '</span> &lt;&lt; curr_line<span class="Delimiter">.</span>label &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; curr_line<span class="Delimiter">.</span>contents<span class="Delimiter">;</span> render_line<span class="Delimiter">(</span>screen_row<span class="Delimiter">,</span> out<span class="Delimiter">.</span>str<span class="Delimiter">());</span> <span class="Delimiter">}</span> <span class="Comment">// clear rest of screen</span> Last_printed_row = screen_row-<span class="Constant">1</span><span class="Delimiter">;</span> for <span class="Delimiter">(;</span> screen_row &lt; tb_height<span class="Delimiter">();</span> ++screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span> render_line<span class="Delimiter">(</span>screen_row<span class="Delimiter">,</span> <span class="Constant">&quot;~&quot;</span><span class="Delimiter">);</span> <span class="Delimiter">}</span> <span class="Comment">// move cursor back to display row at the end</span> tb_set_cursor<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span> tb_present<span class="Delimiter">();</span> <span class="Delimiter">}</span> void render_line<span class="Delimiter">(</span>int screen_row<span class="Delimiter">,</span> const string&amp; s<span class="Delimiter">)</span> <span class="Delimiter">{</span> long long int col = <span class="Constant">0</span><span class="Delimiter">;</span> for <span class="Delimiter">(</span>col = <span class="Constant">0</span><span class="Delimiter">;</span> col &lt; tb_width<span class="Delimiter">()</span> &amp;&amp; col &lt; SIZE<span class="Delimiter">(</span>s<span class="Delimiter">);</span> ++col<span class="Delimiter">)</span> <span class="Delimiter">{</span> char c = s<span class="Delimiter">.</span>at<span class="Delimiter">(</span>col<span class="Delimiter">);</span> if <span class="Delimiter">(</span>c == <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> c = <span class="Constant">';'</span><span class="Delimiter">;</span> <span class="Comment">// replace newlines with semi-colons</span> tb_change_cell<span class="Delimiter">(</span>col<span class="Delimiter">,</span> screen_row<span class="Delimiter">,</span> c<span class="Delimiter">,</span> TB_WHITE<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">);</span> <span class="Delimiter">}</span> for <span class="Delimiter">(;</span> col &lt; tb_width<span class="Delimiter">();</span> ++col<span class="Delimiter">)</span> <span class="Delimiter">{</span> tb_change_cell<span class="Delimiter">(</span>col<span class="Delimiter">,</span> screen_row<span class="Delimiter">,</span> <span class="Constant">' '</span><span class="Delimiter">,</span> TB_WHITE<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">);</span> <span class="Delimiter">}</span> <span class="Delimiter">}</span> </pre> </body> </html> <!-- vim: set foldmethod=manual : -->