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authorAdrian Kummerlaender2016-04-02 21:44:22 +0200
committerAdrian Kummerlaender2016-04-02 21:44:22 +0200
commit59bfdf3b83119c9e5e29f94362307b7e8a3df43a (patch)
tree2e5545be0c9eb1c683f28d8ed520baee9a91c11a /src
parent78b045924a0b589f599546de7d96b7154f76983e (diff)
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Add post condition verification and some documentation
Diffstat (limited to 'src')
-rw-r--r--src/line_accumulator.cc8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/line_accumulator.cc b/src/line_accumulator.cc
index 36cc370..95c2acd 100644
--- a/src/line_accumulator.cc
+++ b/src/line_accumulator.cc
@@ -1,5 +1,6 @@
#include "line_accumulator.h"
+#include <cassert>
#include <iostream>
#include <algorithm>
@@ -60,18 +61,22 @@ void LineAccumulator::operator()(const std::string& word) {
void LineAccumulator::justify() {
switch ( this->tokens_.size() ) {
+ // There is no sensible block justification of null or any single token
case 0:
case 1: {
this->length_ = this->max_length_;
break;
}
+ // i.e. left align the first token and right align the second token
case 2: {
this->tokens_[0].second += this->getMissing();
this->length_ = this->max_length_;
break;
}
+ // most common branch for normal texts, add the maximum equal amount of
+ // spaces to all but the last token
default: {
const std::uint8_t base = this->getMissing()
/ (this->tokens_.size() - 2);
@@ -89,10 +94,13 @@ void LineAccumulator::justify() {
}
}
+ assert(this->getMissing() < this->tokens_.size());
+
switch ( this->getMissing() ) {
case 0: {
break;
}
+ // randomly distribute missing spaces
case 1: {
this->tokens_[
getRandomIndex(this->random_, this->tokens_.size() - 2)