R/extract_yaml_dir.R
extract_yaml_dir.RdThese function extracts all YAML fragments from all files in a directory returning a list of character vectors containing the extracted fragments.
extract_yaml_dir( path, recursive = TRUE, fileRegexes = c("^[^\\.]+.*$"), delimiterRegEx = "^---$", ignoreOddDelimiters = FALSE, encoding = "UTF-8", silent = TRUE )
| path | The path containing the files. |
|---|---|
| recursive | Whether to also process subdirectories ( |
| fileRegexes | A vector of regular expressions to match the files
against: only files matching one or more regular expressions in this
vector are processed. The default regex ( |
| delimiterRegEx | The regular expression used to locate YAML fragments. |
| ignoreOddDelimiters | Whether to throw an error (FALSE) or delete the last delimiter (TRUE) if an odd number of delimiters is encountered. |
| encoding | The encoding to use when calling |
| silent | Whether to be silent ( |
A list of character vectors.
### First get the directory where 'yum' is installed yumDir <- system.file(package="yum"); ### Specify the path of some example files examplePath <- file.path(yumDir, "extdata"); ### Show files (should be three .dct files) list.files(examplePath);#> [1] "attitude.dct" "behavior.dct" "intention.dct"### Load these files yum::extract_yaml_dir(path=examplePath);#> $`C:/Users/micro/AppData/Local/Temp/RtmpOme9Rr/temp_libpath4b4828e3ef5/yum/extdata/attitude.dct` #> [[1]] #> [1] "---" #> [2] "dct:" #> [3] " -" #> [4] " id: attitude_71vqm37n" #> [5] " label: Attitude" #> [6] " date: 2018-12-13" #> [7] " source:" #> [8] " label: Reasoned Action Approach" #> [9] " xdoi: ISBN" #> [10] " def:" #> [11] " def: A latent definition or tendency to respond with some degree of favorableness or unfavorableness to a psychological object." #> [12] " source:" #> [13] " spec: p. 76" #> [14] " measure_dev:" #> [15] " instr: Use semantic differentials with root \"For me, [TARGET BEHAVIOR] is ...\" and a bidimensional scale where the right-most anchor expresses a good, pleasant, beneficial, or interesting evaluation and the left-most anchor expresses the opposite bad/unpleasant/harmful/boring evaluation. The dimensions that are measured can differ depending on whatever is most relevant for the target behavior (e.g. dimensions such as unfavourable-favourable could also be used)." #> [16] " source:" #> [17] " spec: p. 461" #> [18] " manipulate_dev:" #> [19] " instr:" #> [20] " source:" #> [21] " measure_code: " #> [22] " instr: Questionnaires that measure beneficial or pleasant aspects of the latent disposition or tendency to respond favourably versus unfavourably to [target behavior], for example using the semantic differentials good/bad, pleasant/unpleasant, wise/unwise." #> [23] " source: none" #> [24] " manipulate_code:" #> [25] " instr:" #> [26] " source:" #> [27] " aspect_code:" #> [28] " instruction: Any global evaluation of the target behavior as a whole. Note that evaluations of specific aspects or consequences of the behavior relate to aspects of underlying constructs, not of attitude itself." #> [29] " parentId: intention_71vr5q3q" #> [30] " alterId: " #> [31] "---" #> attr(,"class") #> [1] "yamlFragment" #> #> [[2]] #> [1] "---" #> [2] "dct:" #> [3] " -" #> [4] " id: attitude_instrumental_xl678lqgp" #> [5] " label: Instrumental Attitude" #> [6] " date: 2018-11-28" #> [7] " source:" #> [8] " label: Reasoned Action Approach" #> [9] " id: ISBN" #> [10] " def:" #> [11] " def: Ins Att Def" #> [12] " id: pp. 17-18" #> [13] " measure_dev:" #> [14] " instr: Use semantic differentials with root \"For me, [TARGET BEHAVIOR] is ...\" and a bidimensional scale where the right-most anchor expresses a generally desirable instrumental state/goal and the left-most anchor expresses the opposite undesirable state/goal (e.g. \"unwise\" versus \"wise\")." #> [15] " measure_code:" #> [16] " Bla die bla." #> [17] " manipulate_dev: " #> [18] " instr: Operationalisations that measure cognitive aspects of the latent disposition or tendency to respond favourably versus unfavourably to [target behavior], for example using the semantic differentials wise/unwise, good/bad." #> [19] " source: none" #> [20] " aspect_code:" #> [21] " instr: Expressions of benefits or advantages one perceives to be caused/obtained by engaging in the target behavior." #> [22] " source: none" #> [23] " parentId: attitude_71vqm37n" #> [24] "---" #> attr(,"class") #> [1] "yamlFragment" #> #> [[3]] #> [1] "---" #> [2] "dct:" #> [3] " -" #> [4] " id: attitude_experiential_xl678lqgn" #> [5] " label: Experiential Attitude" #> [6] " date: 2018-11-28" #> [7] " source:" #> [8] " label: Reasoned Action Approach" #> [9] " id: ISBN" #> [10] " def:" #> [11] " def: Exp Att Def" #> [12] " id: pp. 15-16" #> [13] " measure_dev:" #> [14] " instr: Use semantic differentials with root \"For me, [TARGET BEHAVIOR] is ...\" and a bidimensional scale where the right-most anchor expresses a pleasant affective state and the left-most anchor expresses the opposite unpleasant affective state (e.g. \"unpleasant\" versus \"pleasant\")." #> [15] " manipulate_dev:" #> [16] " instr: hit one group of people with a stick and do nothing with the other group" #> [17] " measure_code: " #> [18] " instr: Operationalisations that measure affective aspects of the latent disposition or tendency to respond favourably versus unfavourably to [target behavior], for example using the semantic differentials pleasant/unpleasant, fun/boring." #> [19] " source: none" #> [20] " aspect_code:" #> [21] " instruction: Expressions of feelings, emotions, or affective associations that one perceives to be caused by engaging in the target behavior." #> [22] " source: none" #> [23] " parentId: attitude_71vqm37n" #> [24] " alterId: affective_expectancies" #> [25] "---" #> attr(,"class") #> [1] "yamlFragment" #> #> attr(,"class") #> [1] "yamlFragments" "list" #> #> $`C:/Users/micro/AppData/Local/Temp/RtmpOme9Rr/temp_libpath4b4828e3ef5/yum/extdata/behavior.dct` #> [[1]] #> [1] "---" "dct:" #> [3] " -" " id: behavior_xl67k7w8j" #> [5] " label: Behavior" " date: 2018-11-29" #> [7] " def:" " def: The target behavior" #> [9] "---" #> attr(,"class") #> [1] "yamlFragment" #> #> attr(,"class") #> [1] "yamlFragments" "list" #> #> $`C:/Users/micro/AppData/Local/Temp/RtmpOme9Rr/temp_libpath4b4828e3ef5/yum/extdata/intention.dct` #> [[1]] #> [1] "---" #> [2] "dct:" #> [3] " -" #> [4] " id: intention_71vr5q3q" #> [5] " label: Intention" #> [6] " date: 2018-12-13" #> [7] " source:" #> [8] " name: Reasoned Action Approach" #> [9] " id: ISBN" #> [10] " def:" #> [11] " def: The readiness to engage in the behavior, incorporating concepts such as willingness, behavioral expectation, and trying." #> [12] " id: pp. 43" #> [13] " measure_dev:" #> [14] " Instr: Use a likert scale to ask participants to what degree they intend to, are willing to, or plan to perform the target behavior." #> [15] " source:" #> [16] " spec: p. 463" #> [17] " measure_code: " #> [18] " instr: Operationalisations that measure the degree to which [target population] have a deliberate (reasoned) plan/intention to engage in [target behavior]." #> [19] " aspect_code:" #> [20] " instr: Any expressions that somebody has the intention, goal, or plan to perform a target behavior." #> [21] " parentId: behavior_xl67k7w8j" #> [22] " alterId:" #> [23] "---" #> attr(,"class") #> [1] "yamlFragment" #> #> attr(,"class") #> [1] "yamlFragments" "list" #> #> attr(,"class") #> [1] "yamlFragmentsFromDir" "list"