pwc259 solution in go

2 files changed, 188 insertions, 0 deletions

diff --git a/challenge-259/pokgopun/go/ch-1.go b/challenge-259/pokgopun/go/ch-1.go
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+//# https://theweeklychallenge.org/blog/perl-weekly-challenge-259/
+/*#
+
+Task 1: Banking Day Offset
+
+Submitted by: [42]Lee Johnson
+     __________________________________________________________________
+
+   You are given a start date and offset counter. Optionally you also get
+   bank holiday date list.
+
+   Given a number (of days) and a start date, return the number (of days)
+   adjusted to take into account non-banking days. In other words: convert
+   a banking day offset to a calendar day offset.
+
+   Non-banking days are:
+a) Weekends
+b) Bank holidays
+
+Example 1
+
+Input: $start_date = '2018-06-28', $offset = 3, $bank_holidays = ['2018-07-03']
+Output: '2018-07-04'
+
+Thursday bumped to Wednesday (3 day offset, with Monday a bank holiday)
+
+Example 2
+
+Input: $start_date = '2018-06-28', $offset = 3
+Output: '2018-07-03'
+
+Task 2: Line Parser
+#*/
+//# solution by pokgopun@gmail.com
diff --git a/challenge-259/pokgopun/go/ch-2.go b/challenge-259/pokgopun/go/ch-2.go
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+//# https://theweeklychallenge.org/blog/perl-weekly-challenge-259/
+/*#
+
+Task 2: Line Parser
+
+Submitted by: [43]Gabor Szabo
+     __________________________________________________________________
+
+   You are given a line like below:
+{%  id   field1="value1"    field2="value2"  field3=42 %}
+
+   Where
+a) "id" can be \w+.
+b) There can be 0  or more field-value pairs.
+c) The name of the fields are \w+.
+b) The values are either number in which case we don't need parentheses or strin
+g in
+   which case we need parentheses around them.
+
+   The line parser should return structure like below:
+{
+       name => id,
+       fields => {
+           field1 => value1,
+           field2 => value2,
+           field3 => value3,
+       }
+}
+
+   It should be able to parse the following edge cases too:
+{%  youtube title="Title \"quoted\" done" %}
+
+   and
+{%  youtube title="Title with escaped backslash \\" %}
+
+   BONUS: Extend it to be able to handle multiline tags:
+{% id  filed1="value1" ... %}
+LINES
+{% endid %}
+
+   You should expect the following structure from your line parser:
+{
+       name => id,
+       fields => {
+           field1 => value1,
+           field2 => value2,
+           field3 => value3,
+       }
+       text => LINES
+}
+     __________________________________________________________________
+
+   Last date to submit the solution 23:59 (UK Time) Sunday 10th March
+   2024.
+     __________________________________________________________________
+
+SO WHAT DO YOU THINK ?
+#*/
+//# solution by pokgopun@gmail.com
+
+package main
+
+import (
+	"fmt"
+	"reflect"
+	"regexp"
+	"strconv"
+)
+
+type kvpair map[string]string
+
+type parsed struct {
+	name, text string
+	fields     kvpair
+}
+
+type parser struct {
+	m              []string
+	rgxLine, rgxKV *regexp.Regexp
+}
+
+func newParser() parser {
+	return parser{
+		rgxLine: regexp.MustCompile(`{%\s(?P<name>\w+)(?P<kv>(?:\s\w+=(?:\d+|"(?:\\(?:"|\\)|[^"\\])+?"))+)?\s%}(?:\n(?P<tag>[\d\D]+?)\n\{%\sendid\s%})?`),
+		rgxKV:   regexp.MustCompile(`\s(?P<key>\w+)=(?P<value>\d+|"(?:\\(?:"|\\)|[^"\\])+?")`),
+	}
+}
+
+func (ps parser) parse(msg string) parsed {
+	ps.m = ps.rgxLine.FindStringSubmatch(msg)
+	p := parsed{name: ps.m[1], text: ps.m[3], fields: make(kvpair)}
+	if ps.m[2] != "" {
+		for _, kv := range ps.rgxKV.FindAllStringSubmatch(ps.m[2], -1) {
+			_, err := strconv.Atoi(kv[2])
+			if err != nil {
+				kv[2], _ = strconv.Unquote(kv[2])
+			}
+			p.fields[kv[1]] = kv[2]
+		}
+	}
+	return p
+}
+
+func main() {
+	p := newParser()
+	for _, data := range []struct {
+		input  string
+		output parsed
+	}{
+		{
+			`{% youtube id=1234 title="Title \"quoted\" done" %}`,
+			parsed{
+				name: "youtube",
+				fields: kvpair{
+					"id":    "1234",
+					"title": `Title "quoted" done`,
+				},
+			},
+		},
+		{
+			`{% youtube title="Title with escaped backslash \\" id=4321 %}`,
+			parsed{
+				name: "youtube",
+				fields: kvpair{
+					"id":    "4321",
+					"title": `Title with escaped backslash \`,
+				},
+			},
+		},
+		{
+			`{% id %}`,
+			parsed{name: "id", fields: kvpair{}},
+		},
+		{
+			`{% youtube id=12345 title="mejoo and cats" cats="\"monji\" \\ \"bongji\" \\ \"hyuji\" \\ \"yoji\" \\ \"audrey\"" %}
+soo
+mejoo
+{% endid %}`,
+			parsed{
+				name: "youtube",
+				fields: kvpair{
+					"id":    "12345",
+					"cats":  `"monji" \ "bongji" \ "hyuji" \ "yoji" \ "audrey"`,
+					"title": "mejoo and cats",
+				},
+				text: `soo
+mejoo`,
+			},
+		},
+	} {
+		//fmt.Println(p.parse(data.input))
+		fmt.Println(reflect.DeepEqual(p.parse(data.input), data.output))
+	}
+}