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71 lines
3.7 KiB
C++
71 lines
3.7 KiB
C++
#include <text/parse.h>
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#include <text/format.h>
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#include <text/utf8.h>
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#include <oak/oak.h>
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static size_t const kWrapColumn = 10;
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static size_t const kTabSize = 3;
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static std::string soft_breaks (std::string const& str)
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{
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std::string res = "";
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size_t from = 0;
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citerate(offset, text::soft_breaks(str, kWrapColumn, kTabSize))
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{
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res += str.substr(from, *offset - from) + "‸";
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from = *offset;
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}
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return res + str.substr(from);
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}
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static std::string indented_wrap (std::string const& str, size_t width, size_t indentWidth = 3)
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{
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std::vector<std::string> lines;
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size_t from = 0;
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citerate(offset, text::soft_breaks(str, width, kTabSize, indentWidth))
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{
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lines.push_back(str.substr(from, *offset - from));
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from = *offset;
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}
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lines.push_back(str.substr(from));
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return text::join(lines, "\n" + std::string(indentWidth, ' '));
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}
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void test_soft_breaks ()
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{
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OAK_ASSERT_EQ(soft_breaks(""), "" );
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OAK_ASSERT_EQ(soft_breaks("foo"), "foo" );
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OAK_ASSERT_EQ(soft_breaks("foo bar"), "foo bar" );
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OAK_ASSERT_EQ(soft_breaks("foo bar xy"), "foo bar xy" );
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OAK_ASSERT_EQ(soft_breaks("foo bar xyz"), "foo bar ‸xyz" );
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OAK_ASSERT_EQ(soft_breaks("foo-bar-xy"), "foo-bar-xy" );
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OAK_ASSERT_EQ(soft_breaks("foo-bar-xyz"), "foo-bar-xy‸z" );
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OAK_ASSERT_EQ(soft_breaks("foo-bar-xyz fud baz\n"), "foo-bar-xy‸z fud baz\n" );
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OAK_ASSERT_EQ(soft_breaks("foo-bar-xyz fud baz xyz"), "foo-bar-xy‸z fud baz ‸xyz" );
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OAK_ASSERT_EQ(soft_breaks("foo bar fud"), "foo bar ‸fud" );
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OAK_ASSERT_EQ(soft_breaks("foo bar fud"), "foo bar ‸fud" );
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OAK_ASSERT_EQ(soft_breaks("foo bar fud"), "foo bar ‸fud" );
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OAK_ASSERT_EQ(soft_breaks("foo bar fud"), "foo bar ‸ fud" );
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OAK_ASSERT_EQ(soft_breaks("foo bar x fud"), "foo bar x ‸fud" );
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OAK_ASSERT_EQ(soft_breaks("foo bar xy fud"), "foo bar ‸xy fud" );
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OAK_ASSERT_EQ(soft_breaks("foo bar xyz fud"), "foo bar ‸xyz fud" );
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OAK_ASSERT_EQ(soft_breaks("foo bar x\nfud"), "foo bar x\nfud" );
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OAK_ASSERT_EQ(soft_breaks("foo bar xy\nfud"), "foo bar xy\nfud" );
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OAK_ASSERT_EQ(soft_breaks("foo bar xyz\nfud"), "foo bar ‸xyz\nfud" );
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OAK_ASSERT_EQ(soft_breaks("1234567890\n1234567890\n"), "1234567890\n1234567890\n" );
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OAK_ASSERT_EQ(soft_breaks("1234 67890\n1234 67890\n"), "1234 67890\n1234 67890\n" );
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OAK_ASSERT_EQ(soft_breaks("12345 67890\n1234567890\n"), "12345 ‸67890\n1234567890\n" );
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}
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void test_indented_wrap ()
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{
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OAK_ASSERT_EQ(indented_wrap(" • This is a paragraph.", 10), " • This \n is a \n paragra\n ph.");
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OAK_ASSERT_EQ(indented_wrap(" • This is a long paragraph.", 10), " • This \n is a \n long \n paragra\n ph.");
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OAK_ASSERT_EQ(indented_wrap(" A 12345678901234567890", 12, 6), " A \n 123456\n 789012\n 345678\n 90");
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OAK_ASSERT_EQ(indented_wrap(" AB 12345678901234567890", 12, 6), " AB \n 123456\n 789012\n 345678\n 90");
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OAK_ASSERT_EQ(indented_wrap(" ABC 12345678901234567890", 12, 6), " ABC \n 123456\n 789012\n 345678\n 90");
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OAK_ASSERT_EQ(indented_wrap("123456789012345678901234567890", 12, 6), "123456789012\n 345678\n 901234\n 567890");
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OAK_ASSERT_EQ(indented_wrap("// I consectetur adipisicing", 20, 7), "// \n I consectetur\n adipisicing");
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}
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