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Merge pull request #88 from r-spatial/v.1.0.4
working in rgee v.1.0.4
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| #' Return documentation of Earth Engine modules, methods and classes | ||
| #' @noRd | ||
| ee_help_addins <- function() { | ||
| context <- rstudioapi::getSourceEditorContext() | ||
| selected_content <- context$selection[[1]]$text | ||
| if (selected_content == "") { | ||
| try(ee_help(ee_get_eefunc()), silent = TRUE) | ||
| } else { | ||
| selected_content_filtered <- gsub("\n|[[:space:]]","", selected_content) | ||
| try(ee_help(selected_content_filtered), silent = TRUE) | ||
| } | ||
| } | ||
|
|
||
| #' How many white space we deleted? | ||
| #' @noRd | ||
| ee_space_removed <- function(text, cursor) { | ||
| text <- strsplit(text,"")[[1]] | ||
| sum(grepl(" ",text[1:cursor])) | ||
| } | ||
|
|
||
| #' Merge forward and backward | ||
| #' @noRd | ||
| ee_get_funname <- function(text, cursor) { | ||
| text <- strsplit(text,"")[[1]] | ||
|
|
||
| if (length(text) < cursor) { | ||
| return(invisible(FALSE)) | ||
| } | ||
|
|
||
| if (text[cursor] == "(") { | ||
| cursor <- cursor -1 | ||
| } | ||
| if (cursor == 1) { | ||
| # the last word can not be a $ | ||
| paste0(text[1:forward(text, cursor)], collapse = "") | ||
| } else { | ||
| # the last word can not be a $ | ||
| paste0(text[backward(text, cursor):forward(text, cursor)], collapse = "") | ||
| } | ||
| } | ||
|
|
||
| #' Search words forward | ||
| #' @noRd | ||
| forward <- function(x, cursor) { | ||
| forward_range <- cursor:length(x) | ||
| for (index in forward_range) { | ||
| is_letter <- grepl("[a-zA-Z]", x[index]) | ||
| if (!is_letter) { | ||
| index <- index - 1 | ||
| break | ||
| } | ||
| } | ||
| if (is_letter <- grepl("\\$", x[index])) { | ||
| index - 1 | ||
| } else { | ||
| index | ||
| } | ||
| } | ||
|
|
||
| #' Search words backward | ||
| #' @noRd | ||
| backward <- function(x, cursor) { | ||
| index <- cursor | ||
| repeat { | ||
| if (index == 1) { | ||
| break | ||
| } | ||
|
|
||
| # Just pass the letter if is inside a () | ||
| if (x[index] == ")") { | ||
| count_par <- 1 | ||
| counter <- 0 | ||
| while (count_par != 0) { | ||
| if (x[index] == "(") { | ||
| count_par <- count_par - 1 | ||
| } else if(x[index] == ")" & counter != 0) { | ||
| count_par <- count_par + 1 | ||
| } | ||
| index <- index - 1 | ||
| counter <- counter + 1 | ||
| if (index == 1) { | ||
| break | ||
| } | ||
| # print(sprintf("%s:%s",counter,count_par)) | ||
| } | ||
| index <- index - 1 | ||
| } | ||
|
|
||
| if (grepl("[a-zA-Z]|\\$|\\)", x[index])) { | ||
| index <- index - 1 | ||
| } else { | ||
| index <- index + 1 | ||
| break | ||
| } | ||
| } | ||
| index | ||
| } | ||
|
|
||
| #' Aux function useful to know if a multiline (recursive) | ||
| #' Returns a logical vector. | ||
| #' @noRd | ||
| is_multilines_r <- function(context, line) { | ||
| if (is_multilines(context, line)) { | ||
| c(TRUE, is_multilines_r(context, line - 1)) | ||
| } else { | ||
| FALSE | ||
| } | ||
| } | ||
|
|
||
| #' Aux function useful to know if a multiline | ||
| #' Returns a logical value. | ||
| #' @noRd | ||
| is_multilines <- function(context, line) { | ||
| if (line == 1) { | ||
| FALSE | ||
| } else { | ||
| line_of_code_1 <- context$contents[line] | ||
| text_1 <- strsplit(line_of_code_1, "")[[1]] | ||
| is_white_space <- text_1[1] == " " | ||
|
|
||
| line_of_code_2 <- context$contents[line - 1] | ||
| text_2 <- strsplit(line_of_code_2, "")[[1]] | ||
| is_dolar <- text_2[length(text_2)] == "$" | ||
| if (length(is_dolar ) == 0) { | ||
| is_dolar <- FALSE | ||
| } | ||
|
|
||
| if (is_dolar & is_white_space) { | ||
| TRUE | ||
| } else { | ||
| FALSE | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #' Returns the EE function name | ||
| #' @noRd | ||
| ee_get_eefunc <- function() { | ||
| # get rstudio context | ||
| context <- rstudioapi::getSourceEditorContext() | ||
| cursor <- context$selection[[1]]$range[[1]][2] | ||
| line <- context$selection[[1]]$range[[1]][1] | ||
|
|
||
| # is a multiple line? | ||
| if (any(is_multilines_r(context, line))) { | ||
| # lines above! | ||
| number_of_extra_lineas <- sum(is_multilines_r(context, line)) | ||
| lines <- (line - number_of_extra_lineas):line | ||
| # merge lines text in one character | ||
| text_merge <- paste0(gsub(" ", "", context$contents[lines]), collapse = "") | ||
| # upgrade cursor | ||
| extra_lines <- lines[-length(lines)] | ||
| previous_len <- paste0(context$contents[extra_lines], collapse = "") | ||
| space_removed <- ee_space_removed(text = context$contents[line], cursor = cursor) | ||
| new_cursor <- nchar(previous_len) + cursor - space_removed | ||
| ee_get_funname(text = text_merge, cursor = new_cursor) | ||
| } else { | ||
| ee_get_funname(text = context$contents[line], cursor = cursor) | ||
| } | ||
| } |
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