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Simplified yq usage

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This commit is contained in:
Mike Farah
2022-01-28 12:45:43 +11:00
parent e84a50db2e
commit 9896245f71
44 changed files with 515 additions and 316 deletions
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operators/string-operators.md
+17 -17
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@@ -17,13 +17,13 @@ a: |
Using `$( exp )` wont work, as it will trim the trailing new line.
```
m=$(echo "cat\n") yq e -n '.a = strenv(m)'
m=$(echo "cat\n") yq -n '.a = strenv(m)'
a: cat
```
However, using printf works:
```
printf -v m "cat\n" ; m="$m" yq e -n '.a = strenv(m)'
printf -v m "cat\n" ; m="$m" yq -n '.a = strenv(m)'
a: |
cat
```
@@ -31,7 +31,7 @@ a: |
As well as having multiline expressions:
```
m="cat
" yq e -n '.a = strenv(m)'
" yq -n '.a = strenv(m)'
a: |
cat
```
@@ -40,7 +40,7 @@ Similarly, if you're trying to set the content from a file, and want a trailing
```
IFS= read -rd '' output < <(cat my_file)
output=$output ./yq e '.data.values = strenv(output)' first.yml
output=$output ./yq '.data.values = strenv(output)' first.yml
```
## Join strings
@@ -54,7 +54,7 @@ Given a sample.yml file of:
```
then
```bash
yq eval 'join("; ")' sample.yml
yq 'join("; ")' sample.yml
```
will output
```yaml
@@ -68,7 +68,7 @@ foo bar foo
```
then
```bash
yq eval 'match("foo")' sample.yml
yq 'match("foo")' sample.yml
```
will output
```yaml
@@ -85,7 +85,7 @@ foo bar FOO
```
then
```bash
yq eval '[match("(?i)foo"; "g")]' sample.yml
yq '[match("(?i)foo"; "g")]' sample.yml
```
will output
```yaml
@@ -106,7 +106,7 @@ abc abc
```
then
```bash
yq eval '[match("(abc)+"; "g")]' sample.yml
yq '[match("(abc)+"; "g")]' sample.yml
```
will output
```yaml
@@ -133,7 +133,7 @@ foo bar foo foo foo
```
then
```bash
yq eval '[match("foo (?P<bar123>bar)? foo"; "g")]' sample.yml
yq '[match("foo (?P<bar123>bar)? foo"; "g")]' sample.yml
```
will output
```yaml
@@ -162,7 +162,7 @@ xyzzy-14
```
then
```bash
yq eval 'capture("(?P<a>[a-z]+)-(?P<n>[0-9]+)")' sample.yml
yq 'capture("(?P<a>[a-z]+)-(?P<n>[0-9]+)")' sample.yml
```
will output
```yaml
@@ -177,7 +177,7 @@ cat cat
```
then
```bash
yq eval 'match("cat")' sample.yml
yq 'match("cat")' sample.yml
```
will output
```yaml
@@ -194,7 +194,7 @@ cat cat
```
then
```bash
yq eval '[match("cat"; "g")]' sample.yml
yq '[match("cat"; "g")]' sample.yml
```
will output
```yaml
@@ -218,7 +218,7 @@ Given a sample.yml file of:
```
then
```bash
yq eval '.[] | test("at")' sample.yml
yq '.[] | test("at")' sample.yml
```
will output
```yaml
@@ -236,7 +236,7 @@ a: dogs are great
```
then
```bash
yq eval '.a |= sub("dogs", "cats")' sample.yml
yq '.a |= sub("dogs", "cats")' sample.yml
```
will output
```yaml
@@ -254,7 +254,7 @@ b: heat
```
then
```bash
yq eval '.[] |= sub("(a)", "${1}r")' sample.yml
yq '.[] |= sub("(a)", "${1}r")' sample.yml
```
will output
```yaml
@@ -269,7 +269,7 @@ cat; meow; 1; ; true
```
then
```bash
yq eval 'split("; ")' sample.yml
yq 'split("; ")' sample.yml
```
will output
```yaml
@@ -287,7 +287,7 @@ word
```
then
```bash
yq eval 'split("; ")' sample.yml
yq 'split("; ")' sample.yml
```
will output
```yaml