Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
g

Test String

Code Generator

Language

Generated Code

$re = '/\s+# renovate: datasource=(?<datasource>.*?) depName=(?<depName>.*?)( VersionTemplate=(?<VersionTemplate>.*?))?\s+-\s+(?<currentValue>\d+.\d+.\d+).* /'; $str = '--- workflow: rules: - if: $CI_COMMIT_TAG variables: OCI_TAG_FORMAT: "$CI_COMMIT_TAG" - when: always variables: OCI_TAG_FORMAT: "0.0.0-git-$CI_COMMIT_SHORT_SHA" variables: REPO_URL: "$CI_REGISTRY_IMAGE" REPO_IMAGE: $REPO_URL/$DISK_IMAGE_NAME:$OCI_TAG_FORMAT REPO_IMAGE_SNAPSHOT: $REPO_URL/snapshots/$DISK_IMAGE_NAME:$OCI_TAG_FORMAT IMAGE_FORMAT: raw DISK_IMAGE_NAME: $OS-$OS_RELEASE-$FLAVOR-$K8S_FLAVOR GITLEAKS_ARGS: \'--verbose --log-opts=$CI_COMMIT_SHA\' DIB_SHOW_IMAGE_USAGE: 1 DIB_DEBUG_TRACE: 1 KANOD_OPTIONS_BASE: "-b no_kanod_network -b lvm -b growpart" # renovate: datasource=docker UBUNTU_CI_IMAGE: registry.gitlab.com/sylva-projects/sylva-elements/container-images/ci-disk-image-builder/ubuntu:v2.0.8 # renovate: datasource=docker SUSE_CI_IMAGE: registry.gitlab.com/sylva-projects/sylva-elements/container-images/ci-disk-image-builder/suse:v2.0.8 # renovate: datasource=docker GENERATE_OS_SBOM_CI_IMAGE: registry.gitlab.com/sylva-projects/sylva-elements/container-images/trivy-libguestfs:1.0.0 stages: - test - build - release - gitleaks include: - project: \'renovate-bot/renovate-runner\' ref: v18.64.1 file: \'/templates/renovate-config-validator.gitlab-ci.yml\' rules: - if: $CI_PIPELINE_SOURCE == \'merge_request_event\' changes: paths: - .gitlab-ci.yml - renovate.json - project: \'sylva-projects/sylva-elements/renovate\' ref: 1.0.0 file: \'/templates/renovate-dry-run.gitlab-ci.yml\' rules: - if: $CI_PIPELINE_SOURCE == \'merge_request_event\' changes: paths: - renovate.json - project: "to-be-continuous/gitleaks" ref: 2.5.2 file: "templates/gitlab-ci-gitleaks.yml" - project: \'sylva-projects/sylva-elements/ci-tooling/ci-templates\' ref: 1.0.22 file: - \'templates/release-notes.yml\' # Override the release notes suffix to add the images produced during the build .release-notes-after-script: - | apk add curl bash jq curl -sS --header "PRIVATE-TOKEN: $RELEASE_NOTES_READ_API_TOKEN" "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/pipelines/${CI_PIPELINE_ID}/bridges" \\ | jq ".[].downstream_pipeline.id" \\ | grep -v null \\ | xargs -i curl -sS --header "PRIVATE-TOKEN: $RELEASE_NOTES_READ_API_TOKEN" "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/pipelines/{}/jobs" \\ | jq \'.[] | select(.name == "promote") | .id\' \\ | xargs -i curl --location --header "PRIVATE-TOKEN: $RELEASE_NOTES_READ_API_TOKEN" --output artifacts-{}.zip "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/jobs/{}/artifacts" ls for z in *.zip; do unzip -o $z; done echo "## Produced images:" >> release-notes.md echo " " >> release-notes.md cat *release.md | tee -a release-notes.md # Override the stage to run the release notes creation after the build of the images prepare-release-notes: stage: release # Override the stage to run the release notes creation after the build of the images create-release-notes: stage: release gitleaks: rules: - when: never # Customize gitleak job imported from to-be-continuous in order to checkout main # (needed for git to be able to retrieve commits from this branch not in main) gitleaks-custom: stage: gitleaks extends: gitleaks needs: [] before_script: - echo GITLEAKS_ARGS=$GITLEAKS_ARGS - !reference [gitleaks, before_script] variables: GITLEAKS_ARGS: \'--verbose --log-opts=origin/main..HEAD\' rules: - if: \'$CI_PIPELINE_SOURCE == "pipeline"\' # Do not trigger gitleaks for cross-repo pipelines when: never - if: $CI_BRANCH_NAME == "main" variables: GITLEAKS_ARGS: \'--verbose\' # on main, detect leaks on whole repo - when: always .kubeadm_settings: variables: K8S_FLAVOR: kubeadm KANOD_OPTIONS_K8S: "-b kubeadm" parallel: matrix: - K8S_VERSION: # renovate: datasource=github-releases depName=kubernetes/kubernetes VersionTemplate=v - 1.29.9 # renovate: datasource=github-releases depName=kubernetes/kubernetes VersionTemplate=v - 1.28.14 # renovate: datasource=github-releases depName=kubernetes/kubernetes VersionTemplate=v - 1.27.16 .rke2_settings: variables: K8S_FLAVOR: rke2 KANOD_OPTIONS_K8S: "-b rke2_airgapped" parallel: matrix: - K8S_VERSION: # renovate: datasource=github-releases depName=rancher/rke2 VersionTemplate=v - 1.29.9-rke2r1 # renovate: datasource=github-releases depName=rancher/rke2 VersionTemplate=v - 1.28.14-rke2r1 # renovate: datasource=github-releases depName=rancher/rke2 VersionTemplate=v - 1.27.16-rke2r2 .ubuntu_settings: variables: OS: ubuntu OS_RELEASE: jammy .opensuse_settings: variables: OS: opensuse OS_RELEASE: "15.5" .default-trigger: trigger: include: .gitlab/ci/pipeline-build-and-test.yml strategy: depend forward: pipeline_variables: true rules: - if: $CI_COMMIT_TAG - if: $CI_PIPELINE_SOURCE == \'merge_request_event\' && $CI_MERGE_REQUEST_LABELS =~ /AutoMerge/ - if: $CI_PIPELINE_SOURCE == \'merge_request_event\' when: manual - if: $CI_PIPELINE_SOURCE == \'pipeline\' when: manual build-ubuntu-hardened-rke2: extends: - .default-trigger - .rke2_settings - .ubuntu_settings variables: FLAVOR: hardened KANOD_OPTIONS: "$KANOD_OPTIONS_BASE $KANOD_OPTIONS_K8S -b cis_remediation" build-ubuntu-plain-rke2: extends: - .default-trigger - .rke2_settings - .ubuntu_settings variables: FLAVOR: plain KANOD_OPTIONS: "$KANOD_OPTIONS_BASE $KANOD_OPTIONS_K8S" build-ubuntu-plain-kubeadm: extends: - .default-trigger - .kubeadm_settings - .ubuntu_settings variables: FLAVOR: plain KANOD_OPTIONS: "$KANOD_OPTIONS_BASE $KANOD_OPTIONS_K8S" build-opensuse-plain-rke2: extends: - .default-trigger - .rke2_settings - .opensuse_settings trigger: include: .gitlab/ci/pipeline-build-and-test-suse.yml strategy: depend variables: FLAVOR: plain KANOD_OPTIONS: "$KANOD_OPTIONS_BASE $KANOD_OPTIONS_K8S" build-opensuse-plain-kubeadm: extends: - .default-trigger - .kubeadm_settings - .opensuse_settings trigger: include: .gitlab/ci/pipeline-build-and-test-suse.yml strategy: depend variables: FLAVOR: plain KANOD_OPTIONS: "$KANOD_OPTIONS_BASE $KANOD_OPTIONS_K8S" build-opensuse-hardened-rke2: extends: - .default-trigger - .rke2_settings - .opensuse_settings trigger: include: .gitlab/ci/pipeline-build-and-test-suse.yml strategy: depend variables: FLAVOR: hardened KANOD_OPTIONS: "$KANOD_OPTIONS_BASE $KANOD_OPTIONS_K8S -b cis_remediation_opensuse" '; preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0); // Print the entire match result var_dump($matches);

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php