AppleScript：如何从字符串中提取数字？

Question

我正在编写一个脚本，用于访问有关 Corona 的 NYT 网站，获取美国数据，提取数字（总数、死亡），并向我发送通知。我很接近，但是当我提取数字并显示它们时，它们被放在一起（即 700021 而不是 7000,21）。我的问题是：

如何提取数字以便将它们描绘出来？

代码如下：

set theURL to "https://www.nytimes.com/interactive/2020/world/coronavirus-maps.html?action=click&pgtype=Article&state=default&module=styln-coronavirus&variant=show&region=TOP_BANNER&context=storyline_menu"

tell application "Safari" to make new document with properties {URL:theURL}

tell application "System Events"
    repeat until exists (UI elements of groups of toolbar 1 of window 1 of application process "Safari" whose name = "Reload this page")
        delay 0.5
    end repeat
end tell

to getInputByClass(theClass, num)
    tell application "Safari"
        set input to do JavaScript "
document.getElementsByClassName('" & theClass & "')[" & num & "].innerText;" in document 1
    end tell
    return input
end getInputByClass

set myVar to getInputByClass("g-body ", 5)

on returnNumbersInString(inputString)
    set s to quoted form of inputString
    do shell script "sed s/[a-zA-Z\']//g <<< " & s
    set dx to the result
    set numlist to {}
    repeat with i from 1 to count of words in dx
        set this_item to word i of dx
        try
            set this_item to this_item as number
            set the end of numlist to this_item
        end try
    end repeat
    return numlist
end returnNumbersInString

set theNums to returnNumbersInString(myVar) as text

display notification "COVID-19 UPDATE" subtitle theNums sound name "glass"

tell application "Safari"
    close its front window
end tell

Answer 1

您正在从 returnNumbersInString 处理程序中获取数字列表，但仅将列表强制转换为文本通常不会提供任何类型的格式。一种解决方案是使用 text item delimiters 指定加入列表项时要使用的文本。例如，当将通知转换为文本时，您可以执行以下操作：

set tempTID to AppleScript's text item delimiters
set AppleScript's text item delimiters to ", "
set theNums to returnNumbersInString(myVar) as text
set AppleScript's text item delimiters to tempTID

Answer 2

与我帮助您解决的其他问题类似，目标数据 已经在 table 中，因此我会使用 table 数据 来获取信息，因为它的结构布局不太可能改变 5 的目标 'g-body ' 可能并不总是是美国。

我获取数据的方式有点不同：

set theURL to "https://www.nytimes.com/interactive/2020/world/coronavirus-maps.html?action=click&pgtype=Article&state=default&module=styln-coronavirus&variant=show&region=TOP_BANNER&context=storyline_menu"

tell application "Safari" to make new document with properties {URL:theURL}

tell application "System Events"
    repeat until exists ¬
        (UI elements of groups of toolbar 1 of window 1 of ¬
            application process "Safari" whose name = "Reload this page")
        delay 0.5
    end repeat
end tell

tell application "Safari" to tell document 1 to set CountriesTable to ¬
    do JavaScript "document.getElementsByClassName('svelte-f9sygj')[0].innerText;"

tell application "Safari" to close its front window

set awkCommand to ¬
    "awk '/United States/{print ,\"Cases &\",,\"Deaths\"}'"

set notificationMessage to ¬
    do shell script awkCommand & "<<<" & CountriesTable's quoted form

display notification notificationMessage subtitle "US COVID-19 UPDATE" sound name "glass"

注意： 代码用于确定页面在Safari 已在 macOS Mojave 和更高版本中完成加载工作，但是，对于 macOS High Sierra 和一些更早的版本，添加wordsbuttons of在UI elements ...前面repeat until exists ¬ ...code.

_{注意：示例 AppleScript code 就是这样，不包含任何可能适当的错误处理。用户有责任根据需要或需要添加任何错误处理。查看 try statement and error statement in the AppleScript Language Guide. See also, Working with Errors. Additionally, the use of the delay 命令在适当的事件之间可能是必要的，例如delay 0.5，适当设置延迟的值。}

AppleScript：如何从字符串中提取数字？

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