//////////////////////////////////////////////////////////////////////////////// // // Copyright 2006 - 2016, Paul Beckingham, Federico Hernandez. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included // in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE // SOFTWARE. // // http://www.opensource.org/licenses/mit-license.php // //////////////////////////////////////////////////////////////////////////////// #include #include #include #include #include Context context; //////////////////////////////////////////////////////////////////////////////// int main (int, char**) { UnitTest t (234); // Ensure environment has no influence. unsetenv ("TASKDATA"); unsetenv ("TASKRC"); try { Nibbler n; std::string s; int i; double d; std::vector options; // Make sure the nibbler behaves itself with trivial input. t.diag ("Test all nibbler calls given empty input"); n = Nibbler (""); t.notok (n.getUntil (' ', s), "trivial: getUntil"); t.notok (n.getUntil ("hi", s), "trivial: getUntil"); t.notok (n.getUntilOneOf ("ab", s), "trivial: getUntilOneOf"); t.notok (n.skipN (123), "trivial: skipN"); t.notok (n.skip ('x'), "trivial: skip"); t.notok (n.skipAllOneOf ("abc"), "trivial: skipAllOneOf"); t.notok (n.getQuoted ('"', s), "trivial: getQuoted"); t.notok (n.getDigit (i), "trivial: getDigit"); t.notok (n.getInt (i), "trivial: getInt"); // 10 t.notok (n.getUnsignedInt (i), "trivial: getUnsignedInt"); t.notok (n.getUntilEOS (s), "trivial: getUntilEOS"); t.notok (n.getOneOf (options, s), "trivial: getOneOf"); t.ok (n.depleted (), "trivial: depleted"); // bool getUntil (char, std::string&); t.diag ("Nibbler::getUntil"); n = Nibbler ("one two"); t.ok (n.getUntil (' ', s), " 'one two' : getUntil (' ') -> true"); t.is (s, "one", " 'one two' : getUntil (' ') -> 'one'"); // 20 t.ok (n.getUntil (' ', s), " ' two' : getUntil (' ') -> true"); t.is (s, "", " ' two' : getUntil (' ') -> ''"); t.ok (n.skip (' '), " ' two' : skip (' ') -> true"); t.ok (n.getUntil (' ', s), " 'two' : getUntil (' ') -> 'two'"); t.notok (n.getUntil (' ', s), " '' : getUntil (' ') -> false"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool getUntilOneOf (const std::string&, std::string&); t.diag ("Nibbler::getUntilOneOf"); n = Nibbler ("ab.cd"); t.ok (n.getUntilOneOf (".:", s), " 'ab.cd' : getUntilOneOf ('.:') -> true"); t.is (s, "ab", " 'ab.cd' : getUntilOneOf ('.:') -> 'ab'"); t.ok (n.skipN (), " '.cd' : skipN () -> true"); t.ok (n.getUntilOneOf (".:", s), " 'cd' : getUntilOneOf ('.:') -> true"); t.notok (n.getUntilOneOf (".:", s), " '' : getUntilOneOf ('.:') -> false"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool getUntil (const std::string&, std::string&); t.diag ("Nibbler::getUntil"); n = Nibbler ("ab\r\ncd"); t.ok (n.getUntil ("\r\n", s), "'ab\\r\\ncd' : getUntil ('\\r\\n') -> true"); t.ok (n.skipN (2), " '\\r\\ncd' : skipN (2) -> true"); t.ok (n.getUntil ("\r\n", s), " 'cd' : getUntil ('\\r\\n') -> true"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool getUntilWS (std::string&); t.diag ("Nibbler::getUntilWS"); n = Nibbler ("ab \t\ncd"); t.ok (n.getUntilWS (s), " 'ab \\t\\ncd' : getUntilWS () -> true"); t.is (s, "ab", " 'ab \\t\\ncd' : getUntilWS () -> 'ab'"); t.ok (n.getUntilWS (s), " ' \\t\\ncd' : getUntilWS () -> true"); t.is (s, "", " ' \\t\\ncd' : getUntilWS () -> ''"); t.ok (n.skipWS (), " 'cd' : skipWS () -> true"); t.ok (n.getUntilWS (s), " '' : getUntilWS () -> true"); t.is (s, "cd", " 'cd' : getUntilWS () -> 'cd'"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool skipN (const int quantity = 1); t.diag ("Nibbler::skipN"); n = Nibbler ("abcde"); t.ok (n.skipN (), " 'abcde' : skipN () -> true"); t.ok (n.skipN (2), " 'bcde' : skipN (2 -> true"); t.notok (n.skipN (3), " 'de' : skipN (3 -> false"); t.notok (n.depleted (), " 'de' : depleted () -> true"); // bool skip (char); t.diag ("Nibbler::skip"); n = Nibbler (" a"); t.ok (n.skip (' '), " ' a' : skip (' ') -> true"); t.ok (n.skip (' '), " ' a' : skip (' ') -> true"); t.notok (n.skip (' '), " 'a' : skip (' ') -> false"); t.notok (n.depleted (), " 'a' : depleted () -> false"); t.ok (n.skip ('a'), " 'a' : skip ('a') -> true"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool skipAllOneOf (const std::string&); t.diag ("Nibbler::skipAllOneOf"); n = Nibbler ("abababcc"); t.ok (n.skipAllOneOf ("ab"), "'abababcc' : skipAllOneOf ('ab') -> true"); t.notok (n.skipAllOneOf ("ab"), " 'cc' : skipAllOneOf ('ab') -> false"); t.ok (n.skipAllOneOf ("c"), " 'cc' : skipAllOneOf ('ab') -> false"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool skipWS (); t.diag ("Nibbler::skipWS"); n = Nibbler (" \tfoo"); t.ok (n.skipWS (), " ' \\tfoo' : skipWS () -> true"); t.notok (n.skipWS (), " 'foo' : skipWS () -> false"); t.ok (n.getUntilEOS (s), " 'foo' : getUntilEOS () -> true"); t.is (s, "foo", " 'foo' : getUntilEOS () -> 'foo'"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool getQuoted (char, std::string&); t.diag ("Nibbler::getQuoted"); n = Nibbler ("''"); t.ok (n.getQuoted ('\'', s), " '''' : getQuoted (''') -> true"); t.is (s, "", " '''' : getQuoted (''') -> ''"); n = Nibbler ("'\"'"); t.ok (n.getQuoted ('\'', s), " ''\"'' : getQuoted (''') -> true"); t.is (s, "\"", " ''\"'' : getQuoted (''') -> '\"'"); n = Nibbler ("'x'"); t.ok (n.getQuoted ('\'', s), " ''x'' : getQuoted (''') -> true"); t.is (s, "x", " ''x'' : getQuoted (''') -> ''"); n = Nibbler ("'x"); t.notok (n.getQuoted ('\'', s), " ''x' : getQuoted (''') -> false"); n = Nibbler ("x"); t.notok (n.getQuoted ('\'', s), " 'x' : getQuoted (''') -> false"); // 90 n = Nibbler ("\"one\\\"two\""); t.notok (n.getQuoted ('\'', s), "\"one\\\"two\" : getQuoted (''') -> false"); n = Nibbler ("\"one\\\"two\""); t.ok (n.getQuoted ('"', s), "\"one\\\"two\" : getQuoted ('\"', s) -> true"); t.is (s, "one\\\"two", "getQuoted ('\"', s) -> one\\\"two"); n = Nibbler ("\"one\\\"two\""); t.ok (n.getQuoted ('"', s), "\"one\\\"two\" : getQuoted ('\"', s) -> true"); t.is (s, "one\\\"two", "getQuoted ('\"', s) -> one\\\"two"); n = Nibbler ("\"one\\\\\""); t.ok (n.getQuoted ('\"', s), "one\\ : getQuoted ('\"', s) -> true"); t.is (s, "one\\\\", "getQuoted ('\"', s) -> \"one\\\\\""); // bool getDigit (int&); t.diag ("Nibbler::getDigit"); n = Nibbler ("12x"); t.ok (n.getDigit (i), " '12x' : getDigit () -> true"); t.is (i, 1, " '12x' : getDigit () -> 1"); t.ok (n.getDigit (i), " '2x' : getDigit () -> true"); t.is (i, 2, " '2x' : getDigit () -> 2"); t.notok (n.getDigit (i), " 'x' : getDigit () -> false"); // bool getDigit4 (int&); t.diag ("Nibbler::getDigit4"); n = Nibbler ("4321"); t.ok (n.getDigit4 (i), " 4321 : getDigit4 () -> true"); t.is (i, 4321, " 4321 : getDigit4 () -> 4321"); // bool getDigit2 (int&); t.diag ("Nibbler::getDigit2"); n = Nibbler ("21"); t.ok (n.getDigit2 (i), " 21 : getDigit2 () -> true"); t.is (i, 21, " 21 : getDigit2 () -> 21"); // bool getInt (int&); t.diag ("Nibbler::getInt"); n = Nibbler ("123 -4"); t.ok (n.getInt (i), " '123 -4' : getInt () -> true"); t.is (i, 123, " '123 -4' : getInt () -> '123'"); t.ok (n.skip (' '), " ' -4' : skip (' ') -> true"); t.ok (n.getInt (i), " '-4' : getInt () -> true"); t.is (i, -4, " '-4' : getInt () -> '-4'"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool getUnsignedInt (int&i); t.diag ("Nibbler::getUnsignedInt"); n = Nibbler ("123 4"); t.ok (n.getUnsignedInt (i), " '123 4' : getUnsignedInt () -> true"); t.is (i, 123, " '123 4' : getUnsignedInt () -> '123'"); t.ok (n.skip (' '), " ' 4' : skip (' ') -> true"); t.ok (n.getUnsignedInt (i), " '4' : getUnsignedInt () -> true"); t.is (i, 4, " '4' : getUnsignedInt () -> '4'"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool getNumber (double&); t.diag ("Nibbler::getNumber"); n = Nibbler ("-1.234 2.3e4"); t.ok (n.getNumber (d), "'-1.234 2.3e4' : getNumber () -> true"); t.is (d, -1.234, 0.000001, "'-1.234 2.3e4' : getNumber () -> '-1.234'"); t.ok (n.skip (' '), " ' 2.3e4' : skip (' ') -> true"); t.ok (n.getNumber (d), " '2.3e4' : getNumber () -> true"); t.is (d, 2.3e4, " '2.3e4' : getNumber () -> '2.3e4'"); t.ok (n.depleted (), " '' : depleted () -> true"); n = Nibbler ("2.0"); t.ok (n.getNumber (d), "'2.0' : getNumber () -> true"); t.is (d, 2.0, 0.000001, "'2.0' : getNumber () -> '2.0'"); t.ok (n.depleted (), " '' : depleted () -> true"); n = Nibbler ("-864000.00000"); t.ok (n.getNumber (d), "'-864000.00000' : getNumber () -> true"); t.is (d, -864000.0, "'-864000.00000' : getNumber () -> -864000.0"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool getLiteral (const std::string&); t.diag ("Nibbler::getLiteral"); n = Nibbler ("foobar"); t.ok (n.getLiteral ("foo"), " 'foobar' : getLiteral ('foo') -> true"); t.notok (n.getLiteral ("foo"), " 'bar' : getLiteral ('foo') -> false"); t.ok (n.getLiteral ("bar"), " 'bar' : getLiteral ('bar') -> true"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool getPartialUUID (std::string&); t.diag ("Nibbler::getPartialUUID"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b3c4d5"); t.ok (n.getPartialUUID (s), "partial uuid [36] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b3c4d5", "partial uuid [36] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b3c4d"); t.ok (n.getPartialUUID (s), "partial uuid [35] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b3c4d", "partial uuid [35] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b3c4"); t.ok (n.getPartialUUID (s), "partial uuid [34] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b3c4", "partial uuid [34] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b3c"); t.ok (n.getPartialUUID (s), "partial uuid [33] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b3c", "partial uuid [33] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b3"); t.ok (n.getPartialUUID (s), "partial uuid [32] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b3", "partial uuid [32] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b"); t.ok (n.getPartialUUID (s), "partial uuid [31] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2b", "partial uuid [31] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2"); t.ok (n.getPartialUUID (s), "partial uuid [30] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0F1a2", "partial uuid [30] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0F1a"); t.ok (n.getPartialUUID (s), "partial uuid [29] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0F1a", "partial uuid [29] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0F1"); t.ok (n.getPartialUUID (s), "partial uuid [28] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0F1", "partial uuid [28] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0F"); t.ok (n.getPartialUUID (s), "partial uuid [27] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0F", "partial uuid [27] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E0"); t.ok (n.getPartialUUID (s), "partial uuid [26] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E0", "partial uuid [26] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-E"); t.ok (n.getPartialUUID (s), "partial uuid [25] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-E", "partial uuid [25] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9-"); t.ok (n.getPartialUUID (s), "partial uuid [24] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9-", "partial uuid [24] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D9"); t.ok (n.getPartialUUID (s), "partial uuid [23] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D9", "partial uuid [23] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8D"); t.ok (n.getPartialUUID (s), "partial uuid [22] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8D", "partial uuid [22] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C8"); t.ok (n.getPartialUUID (s), "partial uuid [21] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C8", "partial uuid [21] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-C"); t.ok (n.getPartialUUID (s), "partial uuid [20] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-C", "partial uuid [20] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7-"); t.ok (n.getPartialUUID (s), "partial uuid [19] found"); t.is (s, "a0b1c2d3-e4f5-A6B7-", "partial uuid [19] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B7"); t.ok (n.getPartialUUID (s), "partial uuid [18] found"); t.is (s, "a0b1c2d3-e4f5-A6B7", "partial uuid [18] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6B"); t.ok (n.getPartialUUID (s), "partial uuid [17] found"); t.is (s, "a0b1c2d3-e4f5-A6B", "partial uuid [17] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A6"); t.ok (n.getPartialUUID (s), "partial uuid [16] found"); t.is (s, "a0b1c2d3-e4f5-A6", "partial uuid [16] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-A"); t.ok (n.getPartialUUID (s), "partial uuid [15] found"); t.is (s, "a0b1c2d3-e4f5-A", "partial uuid [15] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5-"); t.ok (n.getPartialUUID (s), "partial uuid [14] found"); t.is (s, "a0b1c2d3-e4f5-", "partial uuid [14] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f5"); t.ok (n.getPartialUUID (s), "partial uuid [13] found"); t.is (s, "a0b1c2d3-e4f5", "partial uuid [13] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4f"); t.ok (n.getPartialUUID (s), "partial uuid [12] found"); t.is (s, "a0b1c2d3-e4f", "partial uuid [12] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e4"); t.ok (n.getPartialUUID (s), "partial uuid [11] found"); t.is (s, "a0b1c2d3-e4", "partial uuid [11] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-e"); t.ok (n.getPartialUUID (s), "partial uuid [10] found"); t.is (s, "a0b1c2d3-e", "partial uuid [10] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3-"); t.ok (n.getPartialUUID (s), "partial uuid [9] found"); t.is (s, "a0b1c2d3-", "partial uuid [9] -> correct"); t.ok (n.depleted (), "depleted"); n = Nibbler ("a0b1c2d3"); t.ok (n.getPartialUUID (s), "partial uuid [8] found"); t.is (s, "a0b1c2d3", "partial uuid [8] -> correct"); t.ok (n.depleted (), "not depleted"); // bool getOneOf (const std::vector &, std::string&); t.diag ("Nibbler::getOneOf"); options = {"one", "two", "three"}; n = Nibbler ("onetwothreefour"); t.ok (n.getOneOf (options, s), "'onetwothreefour': getOneOf () -> true"); t.is (s, "one", "'onetwothreefour': getOneOf () -> one"); t.ok (n.getOneOf (options, s), " 'twothreefour': getOneOf () -> true"); t.is (s, "two", " 'twothreefour': getOneOf () -> two"); t.ok (n.getOneOf (options, s), " 'threefour': getOneOf () -> true"); t.is (s, "three", " 'threefour': getOneOf () -> three"); t.notok (n.getOneOf (options, s), " 'four': getOneOf () -> false"); // bool getN (int, std::string&); t.diag ("Nibbler::getN"); n = Nibbler ("111223"); t.ok (n.getN (3, s), " '111223' : getN (3) -> true"); t.is (s, "111", " '111223' : getN (3) -> '111'"); t.ok (n.getN (2, s), " '223' : getN (2) -> true"); t.is (s, "22", " '223' : getN (2) -> '22'"); t.ok (n.getN (1, s), " '3' : getN (1) -> true"); t.is (s, "3", " '3' : getN (1) -> '1'"); t.ok (n.depleted (), " '' : depleted () -> true"); // bool getUntilEOS (std::string&); t.diag ("Nibbler::getUntilEOS"); n = Nibbler ("one two"); t.ok (n.getUntilEOS (s), " 'one two' : getUntilEOS () -> 'one two'"); t.ok (n.depleted (), " '' : depleted () -> true"); // char next (); t.diag ("Nibbler::next"); n = Nibbler ("hello"); t.is (n.next (), 'h', " 'hello' : next () -> 'h'"); t.is (n.next (), 'h', " 'hello' : next () -> 'h'"); t.ok (n.skipN (4), " 'hello' : skipN (4) -> true"); t.is (n.next (), 'o', " 'o' : next () -> 'o'"); t.ok (n.skipN (1), " 'o' : skipN () -> true"); t.ok (n.depleted (), " '' : depleted () -> true"); // std::string next (const int quantity); t.diag ("Nibbler::next"); n = Nibbler ("hello"); t.is (n.next (1), "h", " 'hello' : next (1) -> 'h'"); t.is (n.next (1), "h", " 'hello' : next (1) -> 'h'"); t.is (n.next (2), "he", " 'hello' : next (2) -> 'he'"); t.is (n.next (3), "hel", " 'hello' : next (3) -> 'hel'"); t.is (n.next (4), "hell", " 'hello' : next (4) -> 'hell'"); t.is (n.next (5), "hello", " 'hello' : next (5) -> 'hello'"); t.is (n.next (6), "", " 'hello' : next (6) -> ''"); // bool depleted (); t.diag ("Nibbler::depleted"); n = Nibbler (" "); t.notok (n.depleted (), " ' ' : depleted () -> false"); t.ok (n.skipN (), " '' : skip () -> true"); t.ok (n.depleted (), " '' : depleted () -> true"); // void save (); // void restore (); n = Nibbler ("abcde"); t.ok (n.skipN (), " 'abcde' : skip () -> true"); n.save (); t.ok (n.skipN (), " 'bcde' : skip () -> true"); t.ok (n.skipN (), " 'cde' : skip () -> true"); t.ok (n.skipN (), " 'de' : skip () -> true"); n.restore (); t.is (n.next (1), "b", " 'bcde' : skip () -> 'b'"); } catch (const std::string& e) {t.diag (e);} return 0; } ////////////////////////////////////////////////////////////////////////////////